Boat trip on the Senanayake Samudraya Lake, Gal Oya National Park, Sri Lanka, Indian subcontinent, South Asia

senanayake samudraya boat trip lake wildlife nature sri lanka travel outdoor adventure exploration landscape relaxation scenery biodiversity tourists aquatic environment tourism south asia river ecosystem watching leisure vacation enjoyment indigenous species natural habitat scenic view heritage hiking flora fauna expedition tranquility local culture experience water activity boating sunlight lagoon