3 curated Scuba Diving spots in Tanzania, each with its own note and source.
Pwani · Best time: Oct–Mar · Beginner
Reefs and bank walls inside sheltered Chole Bay: the Coral Patches sit at 9 to 17 metres, the base of The Pinnacle at 24 metres. Kinasi Pass is a drift with two walls between 6 and 26 metres; the wall dive is calmest on slack tide or a slight incoming current. The marine park charges a daily entry fee (2019: USD 23.50 per person).
Sources: Mafia Island, The Ordinary Adventurer
Pemba · Best time: Jul–Nov · All levels
Walls and drift dives: Fundo Coral Garden and Aquarium stay between 4 and 18 metres and suit beginners, while the drop-offs at Njao Gap and Uvinje Gap fall from 6 to over 40 metres. Uvinje Gap carries very strong current, and both walls call for deep-diving certification. Visibility 20 to 40 metres, water 25 to 29 degrees.
Sources: Fun Divers Zanzibar
Unguja · Best time: Jun–Oct · Beginner
Diving centres on Mnemba Atoll: Kichwani runs from 2 to 30 metres and works from beginner level up, Wattabomi stays at 5 to 20 metres with morays and frogfish. Big Wall (12 to 50 metres) and Jack Fish (10 to 50 metres) are rated advanced to expert. Visibility is usually over 20 metres.
Sources: One Ocean – The Zanzibar Dive Centre
Without a dedicated Scuba Diving note yet, listed on the country page: Mahale Mountains.