Tortola, the "pigeon island", is the largest and most densely populated of the British Virgin Islands. At 543 m, Mount Sage is the highest point on the island and offers the best view of the coral reefs and many bays. Large areas of the forest are nature reserves. Not far from Road Town, the capital of the island, are the remains of the British fort, Fort George, which dates from the 18th century, and Harrigan's Hill still has the remnants of Fort Charlotte. Fort Recovery is assumed to have been established by the first Dutch settlers. The ruins of "The Dungeon", which can be seen by Pockwood Pond are also well worth a visit. Even today, you can see pictures scratched into the walls of the vaults.