Khanderi, a water fort located 5 km off the coast of Maharashtra is on the island consisting of two high hills, one facing north and the other facing south. It contained two wells to supply water to the forces within, and a temple of Shree Vetal. Additionally, the fort has a few old metal canons, the tomb of Daud Pir, a local saint, and a musical stone that emits metallic musical notes when struck. Most of the fort is still intact, with the most prominent structure being an octagonal lighthouse built by the British in June 1867. You can climb up to the lighthouse and have a view of the Arabian sea 3600.