Scuba Season
Underwater reef at Rinca Island
Partly surveyed

Rinca Island

Indonesia · East Nusa Tenggara

Sister island to Komodo in the Lesser Sunda chain, Rinca is home to Komodo dragons on land and some of the Komodo National Park's best manta ray cleaning stations, schooling fish aggregations, and fast drift dives beneath the surface.

How this reef is doing

How we measure this

Reef state

Partly surveyed

Live coral covers 72% of this reef.

Coral cover

HEALTHY RANGE72%2016now
Improving

Fish life

Not surveyed

Heat

Not surveyed

Fishing

QuietBusy

Open to fishing, and the water is fairly quiet.

Open

Sources · MERMAID and the survey teams · Global Fishing Watch and reef gravity

Coral cover over time

Live coral cover, by survey year

Across 3 survey years from 2016 to 2023, live coral cover here has risen from 28% to 72%. Every point is a real survey reading, never a projection.

Live coral cover, percent by year

80%0%region avg 37%201620202023
3 surveys, 2016 to 2023
East Asian Seas average (GCRMN)
MERMAID and the survey teams, within 56 km

What you will see

33 species across the dive sites here

Komodo Dragon

Komodo Dragon

Seen 23 days ago

at Cannibal Rock

Endangered

Great Barracuda

Great Barracuda

Seen 29 days ago

at Toro Reef

Least concern

Humphead Wrasse

Humphead Wrasse

Seen 29 days ago

at Toro Reef

Endangered

Manta Ray

Manta Ray

Seen 1 month ago

at Cannibal Rock

Whitetip Reef Shark

Whitetip Reef Shark

Seen 1 month ago

at Yellow Wall of Texas

Vulnerable

Bluefin Trevally

Bluefin Trevally

Seen 1 month ago

at Toro Reef

Least concern

Blacktip Reef Shark

Blacktip Reef Shark

Seen 1 month ago

at Yellow Wall of Texas

Vulnerable

Reef Manta Ray

Reef Manta Ray

Seen 1 month ago

at Toro Reef

Bumphead Parrotfish

Bumphead Parrotfish

Seen 1 month ago

at Yellow Wall of Texas

Vulnerable

Cleaner Wrasse

Cleaner Wrasse

Seen 2 months ago

at Toro Reef

Least concern

Sea Turtle

Sea Turtle

Seen 2 months ago

at Toro Reef

Least concern

Pygmy Seahorse

Pygmy Seahorse

Seen 3 months ago

at Cannibal Rock

Least concern

Barrel Sponge

Barrel Sponge

Seen 4 months ago

at Yellow Wall of Texas

Leaf Scorpionfish

Leaf Scorpionfish

Seen 4 months ago

at Batu Bolong Rinca

Least concern

Ornate Ghost Pipefish

Ornate Ghost Pipefish

Seen 5 months ago

at Cannibal Rock

Least concern

Bannerfish

Bannerfish

Seen 9 months ago

at Cannibal Rock

Least concern

Giant Trevally

Giant Trevally

Seen 10 months ago

at Batu Bolong Rinca

Least concern

Coleman Shrimp

Coleman Shrimp

Seen May 2025

at Cannibal Rock

Dogtooth Tuna

Dogtooth Tuna

Seen Oct 2024

at Toro Reef

Least concern

Grey Reef Shark

Grey Reef Shark

Seen Sep 2024

at Batu Bolong Rinca

Endangered

Feather Star

Feather Star

Seen Jul 2024

at Batu Bolong Rinca

Acropora Coral

Acropora Coral

Seen year round

at Toro Reef

Blackfin Barracuda

Blackfin Barracuda

Seen year round

at Batu Bolong Rinca

Least concern

Crinoid (Feather Star)

Crinoid (Feather Star)

Seen year round

at Cannibal Rock

Fusilier

Fusilier

Seen year round

at Yellow Wall of Texas

Sea Apple

Sea Apple

Seen year round

at Cannibal Rock

Sea Fan

Sea Fan

Seen year round

at Yellow Wall of Texas

Sweetlips

Sweetlips

Seen year round

at Cannibal Rock

Least concern

Table Coral

Table Coral

Seen year round

at Batu Bolong Rinca

Endangered

Tunicate (Colonial)

Tunicate (Colonial)

Seen year round

at Cannibal Rock

Yellow Soft Coral

Yellow Soft Coral

Seen year round

at Yellow Wall of Texas

Eagle Ray

Eagle Ray

Seasonal visitor

at Yellow Wall of Texas

Endangered

Giant Clam

Giant Clam

Seasonal visitor

at Yellow Wall of Texas

Critically endangered

Dive sites

Gear & getting wet

  • Basic kit

    • Mask and fins
    • BCD and regulator
    • 5mm full wetsuit · cooler water
    • Dive computer