New Delhi [India], July 23: Come August, with a number of long weekends, it's time for a short break with the family or a group of four pax! Antara River Cruises recently launched two cabin catamarans in Bhitarkanika National Park in Odisha that offer an offbeat two/ three night vacation traversing the estuarine region of the Brahmani - Baitarani River systems and their tributaries. These sustainably built vessels - MV Mahanadi and MV Bhitarkanika - are designed to explore the Bhitarkanika mangrove wetland covering an area of 672 sq km.