The Petrified Forest (Lesvos) | Dive a Sunken Forest

Site Overview

The Petrified Forest of Lesvos is world-famous on land, but a lesser-known treat is the chance to dive among submerged fossilised tree trunks just offshore from Sigri. These ancient trunks, mineralised and frozen in time by a volcanic eruption millions of years ago, lie in shallow, clear water and form a unique underwater geological dive. The life is modest compared with a coral reef — nudibranchs, octopus and wrasse among the rocks — but the experience of finning over a sunken forest is genuinely otherworldly. It is a shallow, sheltered site suited to Open Water divers and to anyone fascinated by earth history, and a memorable contrast to the region’s walls and wrecks. For geology lovers, diving the Petrified Forest is a highlight of the North-East Aegean. The Petrified Forest (Lesvos) sits within Aegean – Sporades & North-East Aegean and is best described as a geology and reef dive. The water here is typically clear, and the profile — from around 2 m down to 16 m — gives beginner divers a rewarding range of routes. Among the life you can expect are Nudibranch, Common Octopus, Wrasse, Mediterranean Moray, Sea Urchin. The site rewards a slow, observant approach, and good buoyancy keeps both diver and reef safe. With sensible planning around weather and boats, it ranks among the more memorable stops on a Greek diving trip.