Spread of 900 hectares of lush mangroves and murky waters, a cruise along the Madu Ganga offers a variety of things to see. As you glide along the waters of Madu Ganga on a scenic boat ride, be ready to spot crocodiles, birds, fishermen and more hidden within this rich estuary. The river is home to approximately 300 types of plants and 240 species of animal species. There are approximately 62 islands on the river, the two largest being Kothduwa and Maaduwa.