This is the Blue Lagoon, in Nusa Ceningan, near Bali

Its quite a surprising sight when you get there. Its like a cliff filled with this crazy beautiful blue water, and the sea is always wild, splashing against the cliff walls, which then created a texture like corals, kinda hard to walk through.

Right beside it, its the Secret Beach, that in contrast to the Blue Lagoon, is calm, with easy access and also extremely pretty.