South eastern coastal areas of Bangladesh is Ecologically Critical Area (ECA) declared by Government of Bangladesh in 1999. The area is quite a biodiversity hotspot. To restore the charismatic megafauna and other endangered species MarineLife Alliance has taken initiative to conserve the marine biodiversity. Current programs are taken to conserve sea turtle, cetaceans, water birds, and coral habitat. Included are monitoring and conservation of sea turtle, cetacean, whale shark and water bird as a major group. we conduct scientific monitoring, habitat restoration and protection through community participation.