If you make this happy island float low above the water surface, and take care of some roap-ladder to get back, you can enjoy diving from a cliff in any sea! Some caution should be taken in windy weather, so that you won't find yourself in the middle of the sea with the island taken away with the wind ;)

Your perfect safe space and a place for solitude. Go on round the globe vacation, see the world flying by from your bedroom window!

This concept captivated me for many years. To be able to overcome gravity, to see islands peacefully drifting away. How? I would imagine some mineral that is rich in several regions of the world, in the places where Earth's surface crusted after huge meteors fell billions years ago.