Little Nicobar Island is densely wooded, with Mount Deoban rising to a height of 413m on the central part, and the Empress Peak rising to 401m on the NE part of the island.
Little Nicobar Island has been reported to be a good radar target up to 23 miles.
The NW coast between Sombrero Point and Pahua, about 6 miles SW and then about 7.5 miles S to Cape Edinburg, is fringed by a reef which extends up to 0.5 mile offshore.
On 26 December 2004, the coast of the Nicobar Islands was devastated by a 10-15 m high tsunami following the 2004 Indian Ocean earthquake.
Trak and Treis islands Nicobar
Trak Island lies 5 miles WNW of Sombrero Point; Treis Island lies 1 mile SE of Trak Island.
Both islands are small, reef-fringed, and surrounded by sunken rocks.
A rock, which has a depth of less than 1.8m, lies about midway between Treis Island and Sombrero Point.
30 Nov 11