wetlands and diverse plant life in caño negro wildlife refuge, costa rica

wildlife refuge costa rica wetlands biodiversity nature conservation ecosystem habitat birds waterfowl flora fauna travel tourism ecotourism sanctuary reserve protected environment sustainability marshland ecology tropical rainforest adventure sightseeing exploration outdoors scenic lagoon river creek swamp mangrove birdwatching hiking canoeing kayaking fishing boating wildlifewatching naturelovers naturalbeauty wetlandreserve tropicalwildlife costaricatravel