"Secluded lagoon" refers to a small, hidden area of calm water, usually surrounded by land or vegetation, away from other people or the main body of water. Full definition
Scenic Highlights: Four nights cruising through the Galápagos National Park aboard Xavier, snorkelling with sea lions and discovering spectacular marine life in protected bays, finding land iguanas feeding in the cactus forests on South Plaza Island, watching bright - pink flamingos and other sea birds feeding in secluded lagoons. (tripcentral.ca)
You'll have plenty of optional activities to keep you busy, from swimming near sea caves to kayaking through secluded lagoons to trying out night fishing. (virtual-vietnam.com)