
Nosy Tanihely
Madagascar · Mozambique Channel
A small no take island reserve near Nosy Be famous for its coral aquarium, resident sea turtles, rays and easy shallow diving.
Nosy Tanihely National Park
Awarded 2026. 2026 awardee; MCI did not publish a tier, so shown as Awarded.
How this reef is doing
ⓘ How we measure thisReef state
Fishing is held back here, which gives the reef room to recover.
Coral cover
Fish life
Heat
Fishing
Quiet water, and fishing is fully banned here.
Sources · Global Fishing Watch and reef gravity
What you will see
8 species across the dive sites here

Barracuda
Seen year round
at Tanikely Sud
Least concern

Brain coral
Seen year round
at Tanikely Sud

Crocodile fish
Seen year round
at Tanikely Sud

Green turtle
Seen year round
at Tanikely Sud
Least concern

Hawksbill turtle
Seen year round
at Tanikely Sud
Critically endangered

Leopard shark
Seen year round
at Tanikely Sud
Endangered

Blue-spotted stingray
Seasonal visitor
at Tanikely Sud
Least concern

Manta ray
Seasonal visitor
at Tanikely Sud