Santorini snorkeling is volcanic rather than tropical: dark lava rock, pale pumice shelves, arches, sea caves and water clear to fifteen or thirty metres, with no coral. This page sets out the best spots, the boats, the water temperatures and the safety notes specific to this coast.

The 9 most impressive beaches of Santorini
Santorini has the reputation of the most romantic island with the most wonderful sunset in almost the whole world. There are the 9 most impressive beaches in Santorini that are worth visiting during your vacation on the island. Santorini Tours organizes personalized private tours to the beaches of Santorini, according to your preferences.
The beauties of the island are many, but the excellent beaches of Santorini are another feature that makes it stand out.But, without meaning that the rest aspects of Santorini can not pleasantly surprise you.
Red Beach
The most impressive beach that often stars in travel magazines and blogs is the famous Red Beach, which is located in the southern part of the island. The beach is of particular morphological interest as it is full of red and black volcanic rocks. Access is either from Akrotiri by boat or by car and then on foot.
The beach is organized. Features umbrellas, sun loungers and a separate canteen.It is a picturesque beach, one of the most famous on the island, although access to it is very difficult.
Perivolos
Perivolos is one of the most beautiful organized beaches on the island, very large in length and width, with fine sand and clear deep waters. It is essentially the continuation of the beach of Perissa, in the southeastern part of Santorini.It has intense tourist traffic, sunbeds, umbrellas, cafes, beach bars with loud music, taverns right by the sea and many water activities.
Βut at the same time it is an ideal beach for relaxation, since as the visitor moves away from the bars they find the peace they want. This beach is one of the largest in the island and can satisfy even the most demanding visitor. Perivolos is considered one of the most beloved beaches of Santorini.
Vlychada
Located in the southern part of the island, Vlychada has easy access, has a quiet canteen for essentials and sunbeds with umbrellas. It is long in length, with dark black sand and crystal clear waters that deepen very steeply. But if you move away from the canteen, you will enjoy your bath completely alone. In the surrounding area you will find a few taverns with delicious traditional delicacies, while if you sit until sunset, the sunset will compensate you for the stay.
White Beach
Anyone who visits the Red Beach of the island is worth going to the next beach, Aspri. As its name suggests, the beach is full of white rocks that are in stark contrast to its black sand. Ideally quiet in relation to the busy and neighboring Red Beach. You will need to go there prepared. It has minimal sunbeds and umbrellas and you will not find a canteen or tavern there.
Mouzakia
Mouzakia beach of Santorini is ideal for you who have your own boat, or the way to rent one. Mouzakia beach is located between Oia and Imerovigli. You can get there only from the sea but its crystal clear waters and relative tranquility will compensate you with the above. Santorini Tours can transport you at Mouzakia.

Perissa
Perissa is the most economical solution for unforgettable youth holidays in Santorini. It is located in the southeastern part of the island, and has everything a visitor who is looking for intense fun, day and night. Its beach is one of the largest and most organized on the island, with thick black sand, steep waters, diving school , water park, facilities and trainers for water sports, camping, beach bars, sunbeds, umbrellas, hotels, taverns, etc. In Perissa the fun never stops. You can take a tour of Santorini!
Kamari Beach
One of the most cosmopolitan and tourist beaches of Santorini is Kamari, due to its close distance from the airport of the island. The beach has black sand, fine gravel and deepens sharply. It is particularly large in both length and length. There are many beach bars in every part of it, however, Kamari is also preferred by families.
The 9 most impressive beaches of Santorini

Ammoudi
This is a port and not a beach. However, its waters are wonderful and there are many people from the island who prefer it for their swimming (apart from the food in the taverns on the sea). Access is a) on foot descending 200 steps or b) with mules if you are an adventurous guy, or c) a classic choice by car but then you will need to walk 200 m.
Although Ammoudi is not exactly a beach it is one of the most picturesque places of Santorini and attracts a lot of people who want to enjoy a Santorini meal and take a dip. It is a nice choice to see the sunset at 7, with crowds standing on the stairs or on the path that leads from the parking lot to the port.
Monolithos
Monolithos is a beach in the east of the island that is well known to locals and families. With black sand but also with very shallow waters, Monolithos has moderate tourist traffic. It is organized, and in addition to the beach bar travelers can enjoy local delicacies in one of the taverns along the beach.
Learn more about Santorini tours:
- Santorini Sightseeing Private Tour
- Exclusive Shore Santorini Private Tour
- Impressive Caldera Santorini Private Tour
- South Part Santorini Private Tour
- North Part Santorini Private Tour
- Santorini Historical Private Tour
- Santorini Sunset Private Tour
Santorini Snorkeling: The Short Answer
Santorini snorkeling is better than the island’s reputation suggests and it works differently here from anywhere else in the Cyclades, because the coastline is volcanic rather than limestone. What you get is dark rock, sudden drops, pale pumice shelves, sea caves and water that is exceptionally clear. What you do not get is a coral reef or big fish, and anybody arriving with Red Sea expectations will be disappointed.
Where the good santorini snorkeling spots are. The south and south-west coast around Akrotiri: the White Beach, Mesa Pigadia, Balos, the rocks off the Red Beach and the caves near Indian Rock. Then Ammoudi below Oia, and the shelves off Thirasia.
Where it is poor. The long sandy beaches at Perissa, Perivolos, Kamari and Monolithos. Beautiful for swimming and almost nothing to look at underwater.
Santorini snorkeling visibility. Frequently fifteen to thirty metres, which is excellent. Volcanic sand stirs up in swell, so the day after a windy day is the worst day.
Water temperature. About 17 degrees in April, 19 to 20 in May, 22 in June, 24 in July, 25 to 26 in August and September, and 22 to 23 through October.
What you will see. Damselfish in clouds, sea bream, wrasse, salema, octopus, sea urchins, the occasional moray and, on the volcanic shelves, the geology itself, which is the real attraction.
From shore or from a boat. Both. The best santorini snorkeling is reached by boat, because the White Beach, Balos and the sea caves have no land access.
Santorini snorkeling gear. Bring your own mask if you are particular. Dive centres and beach operators rent sets for a few euros, and every catamaran cruise carries gear on board.
Santorini snorkeling cost. Free from the shore. A snorkelling trip by boat runs 50 to 90 euros; it is also included at no extra cost on most catamaran cruises.
The season. June to early October for comfort. May and late October are swimmable for the hardy.
The one safety note. Sea urchins are everywhere on the volcanic rock and the entries are sharp. Wear something on your feet.
The Best Santorini Snorkeling Spots
The island’s good water is concentrated in the south-west, where the volcanic rock meets the sea in shelves and drop-offs rather than sloping sand.
The White Beach. Reachable only by boat, under pale pumice cliffs near Akrotiri. Rock on both sides of a small bay, a gravel floor, and the clearest water on the island. The single best santorini snorkeling stop and the one every catamaran visits.
Mesa Pigadia. The best santorini snorkeling from land: a small pebble cove on the south coast under red and black cliffs, with a road down to it. Rock at both ends, fish immediately, and almost nobody there.
Balos. A tiny sheltered santorini snorkeling bay west of Akrotiri, shallow at the edges and dropping quickly, with a sand and rock floor. Quiet, accessible on a dirt track, and excellent.
The Red Beach rocks. The beach itself is gravel and the rock at either end is where the fish are. Best seen from a boat, because the land path over the rockfall closes periodically.
The sea caves near Indian Rock. On the southern shore, reached by boat, with overhangs and arches and light coming through the water. The most dramatic santorini snorkeling on the island.
Ammoudi and Agios Nikolaos rock. Below Oia. You swim out a hundred metres to the small rock island, which is a standard local swim, and the drop on its far side is deep and full of fish.
Armeni. The other tiny harbour below Oia, quieter than Ammoudi, with rock to the north.
Thirasia. The emptiest santorini snorkeling on the island, across the caldera, with a rocky shoreline at Riva and almost no one in the water.
Vlychada’s eastern rocks. At the end of the beach where the pumice cliffs meet the sea. Modest and convenient.
Kambia. A small black-pebble cove north of Akrotiri on the caldera side, with deep water straight off the shore and a reputation among local divers.
The caldera itself. Deep, dark, and not a snorkelling environment. The wall drops hundreds of metres and there is nothing to see in the first ten.
What to avoid. Perissa, Perivolos, Kamari and Monolithos. Long sandy beaches with nothing underwater, and the santorini snorkeling is genuinely not worth the effort there.
Santorini Snorkeling by Boat
The best spots have no road to them, which means the most productive santorini snorkeling here is done from a deck.
Catamaran cruises. Five hours from Vlychada, 90 to 190 euros a head including food and drink, with two or three swim stops at the White Beach, the Red Beach and the caves, and snorkelling gear supplied. Not sold as snorkelling and in practice the easiest way to do it.
Dedicated santorini snorkeling trips. Three to four hours, 50 to 90 euros, with a guide, gear and two or three sites. Smaller groups and more time in the water than a cruise gives you.
Speedboat and RIB tours. Six to twelve people, fast, and able to get into the caves and coves the bigger boats cannot enter.
Sea kayak and snorkel. Half-day trips along the south-west coast, combining paddling with two or three stops. Excellent value and the most active version.
Private charter. 1,200 to 3,000 for a catamaran for the day, which for eight or more people converges with the shared price and lets you choose the stops.
Morning versus afternoon. Mornings are calmer, clearer and emptier. Afternoon wind stirs the sand and the same santorini snorkeling site can lose half its visibility by three o’clock.
Where boats leave from. Vlychada marina mostly, with some departures from Ammoudi and from Akrotiri’s small harbours.
What is included. Mask, snorkel and fins on almost every boat, and a towel on the better ones. Wetsuit shorties in May and October on request.
Booking a santorini snorkeling boat. Two to four weeks ahead in July and August for the smaller boats. Catamarans sell out earlier for the sunset slot than the morning one.
The honest recommendation. If you want one day in the water, take a morning catamaran or a dedicated snorkelling trip, not a sunset cruise. The sunset is lovely and the water is better at ten in the morning.
What You Will Actually See
Expectation management is most of the value of this page. The Aegean is a clear, clean, relatively empty sea, and santorini snorkeling gives you geology and small fish rather than abundance.
Damselfish. The santorini snorkeling staple: clouds of small dark fish hanging over the rock, the most numerous thing you will see, and they barely move as you pass.
Sea bream. Several species, silver and striped, in loose groups over the shelves.
Wrasse. Green and orange, territorial, and the most colourful thing in this water.
Salema. Yellow-striped and in shoals, usually shallow.
Octopus. Common on the volcanic rock if you look for the piles of shells outside a hole rather than for the animal.
Moray eels. Present and rarely seen, tucked into cracks. Harmless if left alone.
Sea urchins. Everywhere, black and long-spined, and the reason you wear something on your feet.
Starfish and sea cucumbers. On the sandy patches between rock.
Jellyfish. Occasional on a santorini snorkeling day, and seasonal, mostly harmless moon jellies. Stinging species appear in some years in late summer.
No coral. The Mediterranean has no tropical reef. What you get instead on santorini snorkeling is black lava rock, pumice shelves, arches, caves and startling drop-offs.
The geology, which is the point. Layers of ash and lava visible underwater, red and white rock meeting in the same cove, and in places warm water seeping from the seabed. There is nowhere else in Greece that looks like this below the surface.
The dark sand effect. Volcanic grit makes the shallows look less inviting than limestone islands do, and it also makes the fish and the rock stand out more sharply once you are over them.
Gear, Conditions and the Season
The santorini snorkeling mask. The one thing worth bringing from home. Rental masks leak and a leaking mask ruins a day of santorini snorkeling faster than anything else.
Fins. Useful rather than essential from the shore, and worth having for the swim out at Ammoudi.
Reef shoes or old trainers. Strongly recommended. The entries are sharp volcanic rock and the urchins are not decorative.
A shorty wetsuit. Worth it in May and October, when the water is 19 to 22 degrees and an hour in it is cold.
A rash vest. The better answer in July and August, because the sun on your back in flat water burns in twenty minutes.
Where to rent. Dive centres at Perissa, Kamari and Akrotiri, beach kiosks on the organised beaches, and every catamaran carries sets.
A dry bag. For the phone, and most of the good spots involve a scramble.
Santorini snorkeling water temperature by month. 16 to 17 in April, 18 to 20 in May, 21 to 23 in June, 24 in July, 25 to 26 in August and September, 22 to 23 in October, and 16 to 18 through the winter.
Visibility. Fifteen to thirty metres on a calm day, and five to ten the day after a blow. The best santorini snorkeling follows two calm days in a row.
The meltemi. A north wind from June to September. It flattens the south coast on some days and wrecks the east coast on most of them, so check which side is sheltered before choosing a spot.
Santorini snorkeling time of day. Morning. The wind builds through the afternoon and the light is better earlier.
Best santorini snorkeling months. September first, for the warmest water of the year and clearing crowds, then June, then July and August, then May and October.
Safety, and the Things Specific to This Island
Sea urchins. The commonest santorini snorkeling injury. Dense on volcanic rock, and the spines break off in the skin. Footwear solves it entirely.
Sharp entries. Lava rock is abrasive and the shelves are uneven. Enter where there is gravel if you can.
Santorini snorkeling depth. The volcanic coast drops away suddenly. Two metres and then twenty, with no shelving. Fine for a confident swimmer and disorientating for a nervous one.
Currents. Usually mild on the south coast and stronger in the channels between Santorini, Thirasia and the volcano islets. Do not snorkel across a channel.
Boat traffic at santorini snorkeling sites. Heavy in summer around Ammoudi, the White Beach and Vlychada. Use a float or a bright cap, and stay close to the rock rather than crossing open water.
Swell and surge. The caves and arches are the best santorini snorkeling on the island and the worst place to be in any swell. Leave them for a flat day.
Sun. Face-down in flat water for an hour is the fastest sunburn available here. A rash vest or factor fifty on your back.
No lifeguards at santorini snorkeling spots. Only on the organised beaches in season, and none of the good spots are organised beaches.
The hot springs. Not a snorkelling site. Shallow, muddy, iron-rich and it stains swimwear permanently.
Buddy up. The good spots are remote, phone signal is patchy under the cliffs, and nobody is watching.
Snorkeling or Diving
Santorini has several dive centres and the underwater volcanic landscape is genuinely good, so the question comes up often.
What diving adds. Depth, which here means walls, a small wreck, caves and the caldera floor. The volcanic topography is the attraction rather than marine life.
Cost. 70 to 120 euros for a guided dive with gear, 110 to 180 for two, and 120 to 160 for a try-dive with no certification.
Cost of santorini snorkeling. Nothing from the shore, or 50 to 90 euros on a boat trip, and included on a catamaran cruise.
What santorini snorkeling does better. The shallow rock, the caves at the waterline, the light, and the ability to do it for an hour whenever you like with no booking.
Visibility. The same water, so similar, and better deeper because the surface grit settles.
Who should dive. Certified divers, and anybody curious enough to spend a morning on a try-dive. The caldera wall is a genuinely unusual dive.
Who should stick to santorini snorkeling. Everyone else, and anybody on the island for three or four days who does not want to lose a morning to a briefing.
The combined answer. A morning catamaran with three snorkelling stops costs less than one guided dive and shows you more of the coast. Start there.
Santorini Snorkeling: Frequently Asked Questions
Is santorini snorkeling any good? Yes, in the right places. The south-west coast around Akrotiri has clear water, volcanic shelves, arches and caves. The long sandy beaches have nothing.
Where are the best spots? The White Beach, Mesa Pigadia, Balos, the rocks off the Red Beach, the caves near Indian Rock, and Ammoudi below Oia.
Can you snorkel from the shore? Yes, at Mesa Pigadia, Balos, Ammoudi, Armeni, Kambia and the eastern end of Vlychada.
Do I need a boat? For the best sites, yes. The White Beach and the sea caves have no land access.
How much does it cost? Free from the shore. 50 to 90 euros for a dedicated snorkelling trip, and included on catamaran cruises at 90 to 190 euros.
What will I see? Damselfish, sea bream, wrasse, salema, octopus and urchins, plus volcanic rock, pumice shelves and caves. No coral.
How warm is the water? 19 to 20 degrees in May, 24 in July, 25 to 26 in August and September, and 22 to 23 in October.
When is the best time? September for the warmest sea, and mornings in any month because the wind builds in the afternoon.
Is it safe? Yes, with footwear for the urchins and care about boat traffic and sudden depth. There are no dangerous animals here.
Do I need to bring gear? Bring a mask if you are particular about fit. Everything else is rented cheaply or supplied on the boat.
Is santorini snorkeling good for children? At Mesa Pigadia and Balos, yes. Not on the caldera side, where the drop is immediate.
Snorkel or dive? Snorkel first, on a boat with two or three stops. Dive if the volcanic walls appeal and you are certified.
We Can Get You to the Water
We are a local operator on Santorini with our own vehicles and our own drivers. The best shore spots — Mesa Pigadia, Balos, Kambia and the Akrotiri coves — are on dirt tracks with no bus service, and the boats leave from Vlychada and Ammoudi.
Tell us where you are staying and which of them you want, and we will run you there and back, and put Akrotiri, the lighthouse or a winery into the same day if you like.
Prices are per vehicle rather than per person, hotel pickup anywhere on the island is included, we guide in twelve languages, and an 80 EUR deposit confirms a date.
See the personalised tour, the private transfers, or contact us.
Every Village and Site on the Island
Any of these can be built into a private day. Each has its own page with what to see and how long to allow.
Caldera villages: Fira · Firostefani · Imerovigli · Oia · Finikia · Baxedes
Inland villages: Pyrgos · Megalochori · Emporio · Mesaria · Karterados · Vothonas · Vourvoulos · Exo Gonia · Mesa Gonia · Pigadia
Beaches: Perissa · Perivolos · Kamari · Vlychada · Monolithos · Red Beach · White Beach · Agios Georgios · Agia Paraskevi
Sites and landmarks: Akrotiri · Ancient Thira · Akrotiri Lighthouse · Nea Kameni · Palia Kameni · Thirasia · Athinios Port
All our tours: All Santorini tours · Full day tour · Sightseeing tour · Personalised tour · North part tour · Horse riding · South part tour · Sunset tour · Shore excursion · Caldera tour · Food experience · Wine tour · Historical tour · Small group tour
Planning and services: Famous sights tour · Private transfers · Transfers to Oia and Finikia · Transfers to other villages · Villages of Santorini · History of Santorini · Tours near you · Languages we guide in · Food and fun tours · Gay friendly tours · Our tour buses · Daily tours · Day tours · FAQ · Gallery · Tour photo gallery · About us · Contact · Blog



























