Tanzania isn’t just about safaris—the country’s crystal-clear waters, coral reefs, and diverse marine life make it a snorkeling paradise! From Zanzibar’s world-famous atolls to hidden coastal gems, here are the best snorkeling spots along Tanzania’s coast.
Location: Off the northeast coast of Zanzibar
Best For: Colorful reefs, tropical fish, and dolphin sightings
Mnemba Atoll is Zanzibar’s top snorkeling destination, featuring pristine coral gardens and abundant marine life. You can spot:
Clownfish, parrotfish, and angelfish Green sea turtles and dolphins Giant starfish and vibrant coral formations
Tip: Arrive early to avoid crowds, and book with a responsible tour operator to avoid disturbing marine life.
Location: Off Zanzibar’s southwest coast Best For: Eco-friendly snorkeling in a protected marine reserve
Chumbe Island offers some of the healthiest coral reefs in East Africa, thanks to strict conservation efforts. Expect to see: Over 500 species of fish Rare coral formations Reef sharks and octopuses
Tip: Only a limited number of guests can visit daily—book in advance!
Location: Off Tanzania’s southern coast Best For: Whale sharks, diverse marine species, and quiet, off-the-beaten-path snorkeling
Mafia Island offers some of Tanzania’s most biodiverse reefs with minimal crowds. Snorkelers can see: Large schools of reef fish Hawksbill and green turtles Whale sharks (October–March)
Tip: Combine snorkeling with a whale shark tour for a once-in-a-lifetime experience!
Location: North of Zanzibar Best For: Drift snorkeling, coral walls, and unspoiled reefs
Pemba Island is less touristy than Zanzibar, making it a fantastic hidden gem for snorkeling. You’ll find: Steep coral drop-offs with incredible visibility Large manta rays and reef sharks Rare species like leaf fish and frogfish
Tip: Stay at a local eco-lodge to support sustainable tourism!
Location: Off Tanzania’s southern coast Best For: Exclusive, luxury snorkeling experiences
This private island offers secluded snorkeling with pristine reefs and an abundance of marine life. Expect to see: Healthy corals and swaying sea fans Reef sharks, stingrays, and turtles Crystal-clear visibility and zero crowds
Tip: Fanjove is part of the Songo Songo Archipelago, so it’s best combined with Mafia Island for a snorkeling adventure.
Best Season: June–March (calm seas, best visibility)
Avoid: April–May (rainy season with rough waters)
For easy access & top marine life: Mnemba Atoll or Chumbe Island For an off-the-beaten-path adventure: Mafia Island or Pemba Island For ultimate exclusivity: Fanjove Island
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We are true experts when it comes to Tanzania. We live, work and travel here. Serengeti African Tours arranges lodge and camping safaris, trekking and hiking tours and beach holidays. We carefully select our well-trained guides, drivers, cooks and porters.
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