Big Blu Mafia Island

Utende-based dive operation inside Mafia Island Marine Park, diving Kinasi Pass, Chole Bay's protected coral bommies and the outer wall when tides allow. Runs the island's signature whale shark snorkel trips in season and teaches courses at a relaxed pace.

Staying there: Simple lodge-style rooms near the beach at Utende; configurations change, so confirm current options when booking.

Prices: Value-oriented pricing plus marine park entry fees per day; whale shark trips are quoted separately. Verify seasonal timing — sharks concentrate roughly October to February.