The reef at Blue Lagoon was still, patient, and impossibly blue. I lowered myself in and felt the hush of another world.

Beneath the surface, time slows in a different way than it does on land. There’s no wind, no ambient chatter, only the sound of your own breath and the soft creaking of coral life going about its business.

A sea turtle drifted past — unhurried, magnificent — and regarded me with polite indifference. This is its domain. I was the visitor.