- Height of the Fort:
- 25 feet
- Kolaba Fort (sometimes Kulaba Fort or Alibag Fort) is an old military fortification in India. It is situated in the sea at a distance of 1–2 km from the shores of Alibag, 35 km south of Mumbai, in the Konkan region of Maharashtra, India. It is a popular tourist destination and a protected monument.
- The first mention of Kolaba fort is when it was chosen by Shivaji to be fortified after the whole of South Konkan became free. In 1662, he strengthened and fortified Kolaba fort to make it one of his chief naval stations.The command of the fort was given to Darya Sagar and Manik Bhandari under whom Kolaba fort became the centre of Maratha attacks on British ships.In 1713 under a treaty with Peshwa Balaji Vishwanath, Kolaba along with several other forts was given over to Kanhoji Angre. He used it as his main base from which to launch raids on British ships. In 1722, the British incensed at Angre's activities, joined the Portuguese in an expedition against Kolaba. A Portuguese land force and three English ships of the line under Commodore Mathews co-operated but the attempt failed. The British blamed the failure to the "cowardice of the Portuguese". About this time Kolaba is described by Hamilton as a fort built on a rock, a little way from the mainland and at high water an island.