The Fortress of Gramvousa is one of the most striking maritime forts in the Mediterranean, perched on a 137-meter-high cliff on the islet of Imeri Gramvousa.

Built by the Venetians in the late 16th century, its strategic location was vital for controlling the sea routes. It remained an unconquerable Venetian stronghold long after Crete fell to the Ottomans, only surrendered through treachery in 1692. During the Greek War of Independence, it became the first liberated territory in Crete, serving as a rebel base. However, due to extreme isolation and lack of supplies, the occupants turned to piracy, making the island a notorious pirate haunt for years. Today, the hike to the top offers a breathtaking panoramic view of the famous Balos Lagoon, surrounded by ruins that echo stories of knights and corsairs.