Around 55 km by road from Alibag and around 160 km by road from Mumbai, it is one of the most popular sea forts of Maharashtra. Hemmed by a sold 40-feet high wall, with high waves beating against it, the 17th-century fort looks impressive from far. Though in ruins, the surviving architecture inside proves it was a well-planned precinct. The 22-acre fort contains remains of palaces, residence and offices, mosques and other buildings. The island fortress even contains two sweet water lakes. Some of the cannons, which ensured the fort remain invincible, can still be seen among the turrets and bastions. Sailboats ferry passengers to and fro, and may not operate during low tide. Expect long queues during peak tourist season. The disembarkation point at the fort is rather bumpy and so senior citizens may find it difficult to alight. It takes a couple of hours to see the entire fort. Carry drinking water.