Ross Island, Port Blair was the seat of the British Administration. This Island was once the capital for the most of Andaman Islands from 1858 until an earthquake in 1941. Important ruins include a church, swimming pool and a Chief Commissioner's residence. A small museum of Indian Navy, SAMUDRIKA, has a good collection of old records.
The Japanese converted the site into POW camp, and built war installations, remnants of which can still be seen. It now lies deserted, and the few signs of its colonial glory, such as the Chief Commissioner's house and the Presbyterian church, are dilapidated and overgrown. The area is now under the control of Indian Navy.
Walking is the only option. It’s a small island.
You can take a day trips with local boatman to mangrove creeks (Bridget Creek is nice) or Mt Harriet National Park. Beach your boat and go for bird watching. Check with the Forest Dept before heading out, for permissions and other formalities.
Nearest airport is at Port Blair. Ross and Viper Island is just adjacent to Port Blair.RAIL