a giant clam with green-edged shell and brown interiors, set amidst a variety of other corals, emphasizing the reef's rich biodiversity

giant clam greenedged tridacna gigas clam brown interiors reef biodiversity nature marine life tropical shell exotic scenic natural beauty underwater ocean aquatic wildlife snorkeling conservation scuba diving ocean life adventure giant brown interiors corals marine life sea ecosystem scuba diving colorful environment habitat clear serene tranquil natural beauty paradise untouched pristine world coral biology shellfish mollusk