In Florida we frequently see a Vanishing Edge pool or an Infinity Edge pool. You often see them in locations where beyond the pool edge you just see water, whether a lake beyond, or open ocean. Sometimes, when there is a traditional light pool surface, the edge intrudes, even though it's not very wide.

Here, in this pool in Costa Rica, you have a dark pool surface, which gives the impression of a natural lagoon rather than a modern pool. This one is well done, and from this edge it looks as though you might fall off with the water, dropping hundreds of feet to the ocean below.

Not to worry - there's a safe pool wall that will keep you enclosed.

Pool design and tropical landscaping can certainly create ambiance, though.