Snorkelling and diving in the Cocos Keeling Islands is full of surprises: powerful drift snorkels, bright coral bommies and misty wreck dives. With 20 Cocos dive sites and countless more snorkel sites, the archipelago is practically a paradise for underwater adventures.

It’s all very well dreaming of spotting dolphins, rays and green turtles, but what are the logistics of snorkelling and diving in the Cocos Keeling Islands? You also need to know where to snorkel – from the shore or boat – and the best spots by experience level, as well as essential safety tips (sharks, currents and conditions).

If you’ve come here from our Ultimate Guide to the Cocos, you may be itching to find out exactly how to master The Rip on Direction Island – and you’re in luck, as we’ll explain the islands’ famed powerful drift snorkel step-by-step.

Why the Cocos (Keeling) Islands Are World-Class for Snorkelling & Diving

If one thing’s for sure, it’s that snorkelling and diving in the Cocos Keeling Islands is pretty darn spectacular. First of all, the 27 coral islands are circled by one of the largest protected marine sanctuaries in the world.

At 467,054 square kilometres in size, the sanctuary is frequented by turtles, rays, dolphins and scalloped hammerhead sharks. Plus, just under 100 species of hard and soft coral rest in the ocean bed, tempting in over 500 fish species.

No wonder, then, that there are 20 mapped Cocos dive sites. Ranging from 10 to 40 metres and suitable for beginners to hardcore divers, the dives feature elements like steep drop-offs and wrecks. With an average visibility of 20 to 30 metres pretty much all year round, your chance of spotting a new species is nice and high.

And if you’re not keen on diving or snorkelling in deep water? Simply focus on snorkelling Cocos lagoon sites, which are directly accessible from the shore. The Cocos lagoon is protected by an outer reef, so it offers calm conditions for beginners and families.

Its shallow coral bommies attract legions of colourful fish. Just a couple of hours of Cocos Keeling Islands snorkelling later, and you may very well find yourself recounting tales of spotting rainbow fish, hawksbill turtles and reef sharks.

Snorkelling vs Diving at the Cocos — Which Is Better?

Here comes the tricky part. How on earth do you choose between snorkelling and diving in the Cocos Keeling Islands? The good news is that you don’t need to decide; you can do both.

However, if you’re limited on time and need to pick just one, you may want to consider the advantages of each:

Cocos Snorkelling	Cocos Diving
✔️Snorkelling Cocos lagoon sites is cheaper than diving.	✔️Cocos dive sites have varied depths, suitable for beginners or experienced divers.
✔️The lagoon has shallow, calm conditions suitable for beginners.	✔️Diving gives you the chance to explore the outer reefs.
✔️You can snorkel directly from the Cocos shore.	✔️You can see shipwrecks, steep drop-offs and other unique features.
✔️No specialist gear is required, just a snorkel, mask and fins.	✔️There are better chances of spotting bigger marine life, like dolphins and scalloped hammerhead sharks.

Still not sure whether to pick Cocos Keeling Islands diving or snorkelling? You may want to consider your age and experience level.

Families usually enjoy snorkelling the Cocos lagoon, where the conditions are calmer and the water is shallow. There is only one dive operator in the Cocos Islands, Cocos Dive, and it has an age limit of 12+; children must already have their Open Water certification, too.

Beginners can focus on snorkelling at gentle snorkel sites like Trannie’s Beach and the Yacht Club on West Island. They will also benefit from booking a snorkelling tour, especially if they want to attempt The Rip on Direction Island. Professional instruction makes it easier to gain confidence in the water.

Experienced divers should book a diving course with Cocos Dive to explore some of the best Cocos dive sites. Fan Wall, Lynnies Leap and Spanish Eyes are some of the more challenging dive sites around the archipelago.

Photographers have plenty of opportunities to snap photos on dives or snorkels. However, keeping waterproof cameras steady on the powerful Direction Island rip can be difficult. Calmer areas like Trannie’s Beach and Pulu Maraya are suited to underwater photography.

Best Snorkelling Spots in the Cocos (Keeling) Islands

Direction Island (Cossie’s Beach)

If there’s only one place you must go snorkelling in the Cocos Keeling Islands, it’s Direction Island. Located a short ferry ride away from West Island and Home Island, this remote, untouched island only has a small scattering of barbecue shelters and simple eco toilets. The rest is coconut palms, a glimmering turquoise lagoon and white sand.

The most famous Direction Island snorkelling site is The Rip, at the south end of Cossie’s Beach. However, it’s also a spectacular place for snorkelling the Cocos lagoon, with shallow, crystal-clear water and huge coral bommies attracting tropical fish (parrotfish, butterfly fish and angelfish), turtles and occasional schools of barracudas. Families especially love the calm conditions.

How to get to Direction Island: The ferry from Home Island and West Island runs on Thursdays and Saturdays, making it easy to do some Direction Island snorkelling. The full details are in our Direction Island guide.

The Rip (Direction Island)

If you haven’t already browsed our Direction Island guide, this may be your first time hearing about The Rip on Direction Island – and it certainly won’t be the last, as it’s widely considered the best snorkelling on Cocos Islands.

To sum it up in just one sentence, The Rip is a powerful drift snorkel that channels swimmers over an underwater valley full of marine life of all shapes and sizes, from fish to turtles, rays and reef sharks.

Before you even think about donning your mask and waddling down there from Cossie’s Beach, you need to understand the mechanics of the drift snorkel. The current is very powerful at The Rip, so snorkellers must be confident and experienced.

There’s very little control over your direction in The Rip. Instead, after entering the water from the foreshore next to the jetty at the south of Direction Island, you must let the channel push you over the underwater valley.

After some time, you’ll reach the calmer lagoon waters at the southwest of Cossie’s Beach. From there, it’s a 150-metre swim to the shore; a rope is available for assistance if needed. Calm, clear conditions are essential for visibility and exiting The Rip safely.

Remember, safety is paramount here, and there’s no coastguard. You should only attempt The Rip if you’re confident and capable. Make sure you understand the entry and exit strategy, and that the conditions are optimal.

West Island Lagoon Snorkelling

With your Direction Island snorkelling done and dusted, you can turn your attention to West Island. Most people stay on West Island, where the Cocos lagoon has a reputation for being calm, clear and shallow.

Many of the most popular snorkel sites are on West Island:

• Trannies Beach is locatedat the northern tip of West Island and is accessible by bicycle, car or on foot. It’s known for its shallow, calm lagoon conditions and colourful fish. Turtles, reef sharks and stingrays are also spotted here, along with trevally on the outer reef.
• Scout Park / Pulu Maraya is a gentle, shallow drift snorkel, only accessible at low tide. To reach Pulu Maraya, you must cycle or drive to Scout Park on the south side of West Island and take a short walk across the reef (bring your reef shoes). There’s a small current that channels snorkellers around the island. Keep your eyes peeled for tropical fish, small reef sharks and rays.
• The lagoon on the south side of West Island is also optimal for snorkelling and suitable for beginners.

Best Scuba Diving Sites in the Cocos (Keeling) Islands

Now, what about the Cocos diving scene? There are 20+ mapped dive sites at the Cocos Islands, but which are the best? How many dive operators are there at the Cocos?

Well, there’s only one dive school at the Cocos, Cocos Dive. Naturally, this makes their tours very popular, so you’ll need to book in advance to get a chance at exploring any of the Cocos dive sites.

The Cocos have a water temperature of 26 – 29 °C all year round, which means that you’ll usually wear a 3-mm wetsuit or rashie. Dive site depths typically range from 10 to 40 metres, depending on your experience and certifications, and the average visibility is 20 to 30 metres.

Outer Reef Dive Sites

Outer reef dives are the prime place to spot larger marine life like dolphins, trevally, pelagics, reef sharks, and, depending on the season, mantas. Features like steep drop-offs are more common, but of course, the added depth means that dives are more suited to intermediate and advanced divers who already have their Open Water certification.

Lagoon Dive Sites

Lagoon dive sites are shallower, focusing on coral gardens, fish and macro life.

Beginner-friendly dives include:

• Cabbage Patches: A 10-metre dive with coral and marine life such as turtles, dolphins and white-tip reef sharks.
• Canons: An easy dive site near Direction Island, popular with the Cocos’ resident dugong Kat, mantas, garden eels and dolphins.
• Cologne Gardens: An easy dive with blooming corals, sea fans and parrotfish.

Marine Life You Can Expect to See

There’s so much marine life to see when snorkelling and diving at the Cocos Keeling Islands, it would be impossible to list them all. However, here are some of the highlights:

• Reef sharks: blacktip, whitetip
• Turtles: green and hawksbill turtles
• Manta rays (seasonal)
• Nearly 100 species of hard and soft coral
• 500+ fish species, including trevally, milkfish, wahoo, parrotfish and rainbow fish
• Bottlenose dolphins
• Scalloped hammerhead sharks
• Octopus
• Nudibranchs
• Crustaceans

Snorkelling & Diving Tours vs Going Solo

Snorkelling and diving in the Cocos Keeling Islands is easier with the help of a local guide. Beginner-friendly snorkels such as Trannie’s Beach and the lagoon at Direction Island are easy to complete independently; they’re accessible directly from the shore, shallow and safe.

However, unless you’re a confident and capable snorkeller, it’s best not to mess around with difficult DIY snorkels such as The Rip. Snorkelling tours can take you to The Rip and other deep-water snorkel sites, helping you to stay safe and focus on the most important thing, which is spotting marine life. Many deep-water snorkel sites are only accessible by boat, so that’s where local knowledge of the tides and conditions comes in handy.

Diving is, of course, different. Scuba diving at the Cocos Islands requires a permit, so you must arrange your dive with the only dive operator, Cocos Dive. The school has expert knowledge of the dive sites, ocean currents and conditions.

Snorkelling & Diving Safety at the Cocos

• The currents and tides are generally predictable within the Cocos lagoon. However, it’s always a good idea to pick up a copy of the tide charts from the Community Resource Centre on West Island.
• There is no coastguard at the Cocos Islands, so you don’t want to get into trouble in the water. Only snorkel if you’re sure of the conditions, a strong swimmer and know the entry/exit points.
• ‘The buddy system’ is a universal safety precaution where you snorkel with a partner. It’s recommended for the Cocos Keeling Islands.
• Always check the weather before going swimming; rain can impact the visibility by pushing mud and debris into the water.
• Wear reef shoes to protect your feet from coral, rocks and debris.

Best Time of Year for Snorkelling & Diving

The best time to visit the Cocos Keeling Islands for snorkelling and diving is December to February.

This is the dry season, when rain is less likely, and visibility is optimal in and out of the water.

It’s also a good idea to avoid the trade wind season (May to June and September to October), which can cause choppy sea conditions and increase your chance of sea sickness.

You may also want to consider marine life seasons. June to November is the prime time for spotting scalloped hammerhead sharks and mantas. The only thing is, this falls within the wet and trade wind seasons, so dives are more likely to be cancelled at short notice.

What to Bring for Snorkelling & Diving

If you’re keen to go snorkelling and diving in the Cocos Keeling Islands, you’ll also need to make sure your packing list is lagoon-ready. This is on top of other considerations, such as packing long-sleeved clothes for Home Island.

• A mask, snorkel and fins are essential for snorkelling at the Cocos Keeling Islands. Fins are especially helpful when navigating The Rip on Direction Island. Snorkelling gear can be hired from the West Island visitor centre, but sizes and stock are limited, so it’s better to bring your own.
• A swimming costume is also essential.
• Reef shoes are necessary to prevent injury from corals and other sea creatures in the shallows.
• A rash vest protects against high UV and stings from jellyfish.
• Reef-safe sunscreen ensures you stay safe from the sun without harming the corals and marine life around you.
• An underwater camera helps to capture photos of critters and colourful fish.

Snorkelling & Diving With Kids at the Cocos

Snorkelling and diving in the Cocos Keeling Islands is ideal for families, with its clear, shallow lagoons protected by the outer reef.

However, not every area is made equal, so you should still think carefully about where you snorkel if you’re travelling to the Cocos with kids.

While calm, shallow areas of the Cocos lagoon are suitable for younger children, most snorkel tour operators only recommend The Rip Cocos and deep-water sites for children aged 12+. Children should also always be supervised by competent adults.

These areas have the best reputation for family-friendly snorkelling:

• Trannie’s Beach, West Island
• The Yacht Club, West Island
• Sandy Point, Home Island
• Pulu Maraya (for older kids)

Remember, if you’re travelling with kids, it’s harder to rent snorkel gear that fits because the West Island visitor centre has limited sizes in stock. For children, you should avoid full-face snorkel masks and use shorter snorkels with a comfortable mouthpiece. A simple mask and fins should fit snugly to prevent them from coming loose, and the mouthpiece

FAQs About Snorkelling & Diving in the Cocos

Is snorkelling safe in the Cocos?
There are many safe snorkelling sites at the Cocos, including Trannie’s Beach, The Yacht Club and lagoon areas at the south of West Island.

Are there sharks in the lagoon?
There are reef sharks in the Cocos lagoon, including white-tip and black-tip species. It’s very rare for big sharks to enter the Cocos lagoon.

Do I need to be an experienced diver?
Diving at the Cocos Island is suitable for beginner, intermediate and advanced divers. Some Cocos dive sites are only suitable for divers who already hold their Open Water certification.

Can you snorkel straight from the beach?
There are many snorkel sites accessible directly from the beach at the Cocos Keeling Islands, including the coral bommies at Cossie’s Beach on Direction Island and Trannie’s Beach on West Island.

Are tours worth it?
Snorkelling tours at the Cocos Keeling Islands are worthwhile because they provide expert guidance and local knowledge of the best snorkel sites on the archipelago. Diving is only allowed at the Cocos with a permit, so you must participate in a diving tour with Cocos Dive school.