
Tremiti Islands
Italy · Mediterranean
Italy's only offshore Adriatic archipelago and a protected marine reserve, the Tremiti group draws divers with cathedral sea caves, sheer walls draped in gorgonians and sponges, and dense aggregations of large sea breams and brown grouper; the clearest water and most stable conditions run from May through September.
How this reef is doing
ⓘ How we measure thisReef state
Live science signals for this reef are still being gathered.
Coral cover
Fish life
Heat
Fishing
Protected on paper, but boats are still busy nearby.
Sources · Global Fishing Watch and reef gravity
What you will see
21 species across the dive sites here

Italian Wall Lizard
Seen 2 months ago
at Grotta delle Rondinelle
Least concern

Mediterranean Moray
Seen 3 months ago
at Grotta delle Rondinelle
Least concern

Common cuttlefish
Seen 3 months ago
at Punta Secca
Least concern

Atlantic bluefin tuna
Seen Jul 2025
at La Vedova Reef
Least concern
Common dentex
Seen Jun 2025
at Cretaccio Island Wall
Vulnerable

Salema Porgy
Seen Jul 2024
at Cretaccio Island Wall
Least concern

Brown grouper
Seen year round
at Grotta delle Rondinelle

European conger
Seen year round
at Grotta delle Rondinelle
Least concern

Mediterranean rainbow wrasse
Seen year round
at Punta Secca
Least concern

Ornate wrasse
Seen year round
at Punta Secca
Least concern

Red coral
Seen year round
at Cretaccio Island Wall

Saddled seabream
Seen year round
at Grotta delle Rondinelle
Least concern

Scorpionfish
Seen year round
at La Vedova Reef
Least concern

Two-banded seabream
Seen year round
at La Vedova Reef
Least concern

White seabream
Seen year round
at Punta Secca
Least concern

Yellow gorgonian
Seen year round
at Grotta delle Rondinelle

Greater amberjack
Seasonal visitor
at Cretaccio Island Wall
Least concern

Loggerhead sea turtle
Seasonal visitor
at La Vedova Reef
Vulnerable

Ocean sunfish
Seasonal visitor
at Cretaccio Island Wall
Vulnerable

Red Scorpionfish
Seasonal visitor
at Grotta delle Rondinelle
Least concern

Cratena Slug
Rare sighting
at Grotta delle Rondinelle
Dive sites

Grotta delle Rondinelle
brown grouper · yellow gorgonian · european conger · saddled seabream

Cretaccio Island Wall
red coral · ocean sunfish · greater amberjack · common dentex

Punta Secca
white seabream · common cuttlefish · mediterranean rainbow wrasse · ornate wrasse

La Vedova Reef
two-banded seabream · atlantic bluefin tuna · scorpionfish · loggerhead sea turtle