Zanzibar is, without doubt, the best destination for diving in Tanzanie. With its crystal-clear waters, exceptional marine life, and coral reef, the archipelago offers numerous dive sites accessible to all levels! Discover Zanzibar's best dive sites, for both scuba diving enthusiasts and snorkeling fans...

The Best Dive Sites in Northern Zanzibar

The best dive sites of Zanzibar are concentrated mainly in the north of the archipelago's main island (called Unguja). They are located notably around Nungwi, Tumbatu Island, Mnemba Island and Pemba Island. Here are the main ones:

Leven Bank

Considered by many to be the best dive spot in Zanzibar, Leven Bank resembles an underwater mountain in the middle of the ocean. It features a coral reef reaching down to 55 meters deep where thousands of reef fish live.

The spot is also renowned for its large number of pelagic fish such as tuna, barracudas, groupers, as well as Napoleon fish and some reef sharks. It's also possible to encounter whale sharks during migration periods (July-August and February-March) and spot humpback whales from the boat (August-September).

Dive Level: Given the strong currents in the area, the site is better suited for experienced divers.

Magic Reef

Considered a paradise for photographer divers and divers of all levels, Magic Reef consists of several reefs between 12 and 20 meters deep. The site features extraordinary marine fauna diversity, including small specimens known as camouflage experts.

Among the species you can observe are: nudibranchs, seahorses, octopuses, shrimp, leafy sea dragons, scorpionfish, stonefish, crocodilefish, lionfish and sometimes a few sea turtles!

Dive Level: All levels, ideal for beginners

Shetani, Popobawa and Mwana wa Mwana: Around Tumbatu Island

Shetani, Popobawa and Mwana wa Mwana are three dive sites located around Tumbatu Island in the northwest of Zanzibar. They are renowned for being the most beautiful coral gardens in the north of the island with great varieties of soft and hard corals.

In terms of fauna, you can see nudibranchs, cuttlefish, leafy sea dragons, batfish, scorpionfish, moray eels, shrimp... The Mwana wa Mwana site is also renowned for hosting numerous seahorses.

Dive Level: All three sites are accessible to all diving levels.

Misali Coral Garden, Njao Gap, North Horn and Mtangani: Around Pemba Island

These sites are located around Pemba Island, the archipelago's second largest island, situated northeast of Zanzibar. The crystal-clear waters around the island constitute excellent protected and preserved dive spots.

You'll discover coral gardens, many reef fish, but also pelagics including white-tipped sharks and sometimes even hammerhead sharks.

Dive Level: The different dive sites cater to different levels.

Mnemba Island

Mnemba Island is a small private island located 3 km off the coast of Zanzibar. Although access to the island is reserved for residents, you can get close to it by dhow to discover its coral reefs and numerous colorful fish...

Kichwani

Located in the south of the Mnemba atoll, Kichwani is a dive spot accessible to both beginners and experienced divers. It is a fringing reef of 40 m.

You'll find colorful corals (including brain coral and staghorn coral) and numerous reef fish: clownfish, surgeonfish, triggerfishes, lionfish, moray eels, mackerel, nudibranchs...

As you descend into deeper waters, you may encounter white-tipped reef sharks and occasionally manta rays. Dive Level: All levels

Big Wall

As its name suggests, Big Wall is a vertiginous drop: it descends to 55 meters deep. It's the realm of barracudas, groupers, moray eels, snappers, tuna and spiny lobsters (among others)!

If you're lucky, you might encounter a giant green sea turtle! Dive Level: Better suited for experienced divers, this spot allows you to discover some underwater caves, adorned with soft and hard corals and sponges.

Wattabomi

With its underwater landscapes ranging between 6 and 30 meters deep, Wattabomi is celebrated for its unique topography! Dotted with coral reefs, it also provides prime habitat for many aquatic species, such as jacks, stonefish, octopuses and groupers.

Renowned for its dynamic currents, it's ideal for drift diving! Dive Level: All levels

The Best Dive Sites in Southern Zanzibar

Like northern Zanzibar, the south of the island offers exceptional dive spots, with incredible marine biodiversity and great diversity of underwater landscapes...

Dolphin Wall: this site features beautiful underwater architecture, with four walls separated by sand bands. You'll encounter scorpionfish, rays, barracudas, yellow-fin tuna, jacks, Napoleon fish and dolphins.

Hammerhead: 30 minutes by boat from Kizimkazi, Hammerhead is a popular site for observing eagle rays, tuna, giant moray eels and black-tipped reef sharks. From mid-October to mid-April, it's also possible to see hammerhead sharks and grey sharks.

Kizidi Reef: renowned for its hard and soft corals, this site is also an excellent spot for night diving, offering a unique underwater experience.

Anemona City: 10 minutes by boat from Kizimkazi, Anemona City is famous for its coral gardens and anemone blocks. You'll find clownfish, nudibranchs, surgeonfish, pufferfish and emperor fish.

One Palm: located southeast of the island, 20 minutes from Kizimkazi, One Palm is a dive site where you'll discover colorful corals and diverse fauna, including barracudas and reef sharks, within a maximum depth of 25 m.

Mafia Island: situated 245 km south of Zanzibar, Mafia Island is a true diving gem. Although rarely visited, it's part of a protected marine park and abounds with exceptional biodiversity. The island's waters are home to whale sharks (November to March), sea turtles, spotted and leopard manta rays, dolphins and reef sharks. Among the best dive spots are Kinasi Pass, Kinasi Wall, Chloe Wall, Milimani North, Milimani South, Coral Gardens, Dindini Northern Wall and Juani Reef.

Where to Snorkel in Zanzibar?

With its crystal-clear waters and postcard-perfect beaches, Zanzibar is also an ideal place for snorkeling. Whether you're a beginner or experienced, the island has several exceptional and easily accessible spots.

Mnemba Island is one of the most popular snorkeling spots in Zanzibar. Accessible by boat from Muyuni and Nungwi, the island is bordered by superb coral reefs, where you can admire blue surgeonfish (like Dory in Finding Nemo), clownfish and sea turtles.

Chumbe Island is a protected marine reserve that is home to over 200 coral species and 400 fish species! In just a few strokes, you'll spot seahorses, octopuses and rays.

Tumbatu Island, located in the northwest of Zanzibar, this island is ideal for snorkeling beginners, due to its shallow waters, which are teeming with marine creatures – such as octopuses, scorpionfish and nudibranchs. A calm and unspoiled location, perfect for an authentic experience.

Nungwi Beach, considered one of the 10 most beautiful beaches in Tanzanie, Nungwi is also renowned for its coral reef rich in biodiversity. With its many tropical fish, it's a perfect spot for snorkeling and discovering the beauty of the seabed...

Matemwe Beach, with its shallow reefs, this beach is also very popular with snorkelers. Why? You can spot parrotfish and sea turtles there!

What is the Best Time to Dive in Tanzanie?

Thanks to its warm waters, oscillating around 25°C in all seasons, Tanzanie is an ideal destination at any time of year for diving.

Note, however, that the rainy season (March to May) should be avoided, as rainfall clouds the water quality. Instead, opt for the dry season, which runs from June to October.

Finally, the best time to dive can also vary depending on the specific weather conditions of each region.

What Marine Mammals Can You See in Zanzibar?

Tanzanie is home to seabeds of incredible richness and biodiversity, but these marine treasures are not the only ones! In fact, the waters of Zanzibar also welcome the ocean's giants! Discover when to see whales, sharks and dolphins on your Zanzibar stopover...

When to See Whales in Zanzibar?

Humpback whales migrate along Zanzibar's coasts between July and November. They can be observed mainly off Mnemba Island, northeast of Unguja, and around Mafia Island, particularly between late August and early October. A unique opportunity to admire these ocean giants as they circle at the water's surface during their migration!

Where to See Sharks in Zanzibar?

In Zanzibar, several shark species can be observed during dives:

• the grey reef shark (which can be observed year-round),
• the whale shark (which can be seen around Mafia Island, between October and March – and particularly between December and February, which record the highest number of specimens.

Some dive operators offer excursions to swim with sharks. As a reminder, sharks are harmless to humans.

When to See Dolphins in Zanzibar?

Dolphins can be spotted throughout the year in Zanzibar, but the recommended period is between June and December, during the dry season. To increase your chances of seeing them, schedule your sea trip in the morning. Learn more about the period to see dolphins in Zanzibar.