corals, marine lake, and snorkeler

acidification adventure barrier bay beautiful biodiversity biology bright change climate colorful colors conservation coral corals destination diverse diversity diving ecology ecosystem environment evolution explores fish foliose fragile green habitat healthy idyllic island lagoon lake landscape life light limestone marine micronesia micronesian natural nature niche ocean offers outdoor pacific palau park reef republic research resort science scuba sea seascape snorkeler snorkeling sunlight symbiosis tourism travel trees tropical tropics underwater visitors volcanic water weather wildlife