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Swim beside the ocean's gentle giants off Mafia Island — one of the world's most reliable places to snorkel with whale sharks.
Whale sharks — the largest fish in the sea, harmless filter-feeders reaching 12 metres — gather to feed off Tanzania’s coast each October to March, and Mafia Island is one of the most reliable places on Earth to swim with them. Unusually, many are resident rather than passing through, so encounters are exceptional.
Guided by operators who follow strict no-touch, respectful-distance rules, you slip quietly into the water as a whale shark feeds and swim alongside a creature the size of a bus. For many travellers it’s the most awe-inspiring wildlife moment of their lives.
Learn the strict no-touch approach guidelines.
Scan the surface for feeding whale sharks.
Enter quietly to snorkel beside a feeding giant.
Multiple encounters as different sharks surface.
A genuine bucket-list encounter, and Mafia's resident sharks make it far more reliable than most destinations — but it's strictly seasonal (Oct–Mar) and weather-dependent. We use only operators who follow the rules that protect the animals. Sightings are likely but never guaranteed.
These are the destinations we most often pair with Whale Shark Swimming, based on route flow, season, and how the wider itinerary fits together.
Powder-white beaches, turquoise reef lagoons, and the carved doorways of Stone Town — the natural finale to any Tanzania safari, 30 minutes'...
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A tiny private island off Zanzibar's north-east tip, ringed by the archipelago's finest reef — the ultimate barefoot luxury and a snorkeller's...
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A laid-back diving island south of Zanzibar — a protected marine park, seasonal whale sharks, and reefs without the crowds.
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Zanzibar's lush, hilly sister island — clove plantations, dramatic drift diving, and a deeply traditional pace far from the crowds.
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Contact us now — we are always here to help with honest, expert advice at no cost.
Tell us about your dream trip and our Tanzania safari specialists will get back to you within 24 hours with a personalised itinerary and no-obligation quote.
A short planning brief gives our team enough context to suggest the right parks, route, pace and accommodation level.
