Pacific Harbour is Fiji's adventure capital, offering the world's best bull shark encounters in a conservation area.
Playa del Carmen's shallow waters are breeding grounds for bull sharks from Nov-March. Best seen in morning dives, depths vary.
Costa Rican Pacific offers diverse attractions including the Bat Islands, a protected area for diving with bull sharks and mantas.
The Blue Hole is a deep underwater cave with stunning stalactites, recommended for experienced divers only.
Koh Tao, a top Gulf of Thailand dive spot, has dive centers offering bull shark sightings at Chumphon Pinnacle and Sail rock.