<P> Port Cornwallis is a port situated on Ross Island, off the NE coast of North Andaman . This should not be confused with Ross Island, which is opposite Port Blair, South Andaman . </P> <P> There is a lighthouse, commissioned in 1973, near Port Cornwallis, "on the summit of Bopung Hill at the entrance of Aerial Bay ." </P>

Where is port cornwallis why is it named so