16. To Sua Ocean Trench – Samoa

Imagine descending a ladder into an emerald trench surrounded by lush greenery – that’s To Sua. It’s like a secret swimming hole straight out of a fairytale. Dive right in or wade slowly; just be mindful of the tides. It’s one of those places where you’ll pinch yourself, half-convinced you’ve stumbled into some movie set. A pro tip? Go early in the day to avoid the crowds and savor the magic solo.