Enter one authorised wartime tunnel to understand the Battle of Leros without exploring unsafe military remains
Leros's deep harbours made it a heavily fortified Italian base and a central battlefield after Italy's 1943 armistice. The museum places weapons, uniforms, maps, photographs and personal material inside a restored military tunnel, giving the island's scattered batteries and bomb damage a human chronology. It is the appropriate controlled setting for encountering the underground infrastructure that remains across Leros.
Confirm same-day hours because the museum is small and seasonal patterns can change. The tunnel environment is enclosed, cool and potentially difficult for visitors with claustrophobia or limited mobility; ask about access before travelling. Never use this visit as permission to enter unmarked tunnels elsewhere. Unstable masonry, unexploded ordnance, poor air and private or military boundaries make unsupervised exploration dangerous. Continue to Lakki afterward to see how the naval base shaped the town above ground.
Good to know
Second World War, Battle of Leros, Tunnel museum, Military history, and Controlled access