Directorate of Shipping Services (Andaman and Nicobar): from Kolkata, Chennai and Visakhapatnam. Makruzz: Port Blair, Havelock Island and Neil Island. Green Ocean: Port Blair, Havelock Island and Neil Island. Nautika: Port Blair, Havelock Island and Neil Island. Island Tourist Boat Operators Association: North Bay Island, Port Blair and Ross Island. ITT Majestic: Port Blair, Havelock Island and Neil Island.