Discover Eden on the shores of the South China Sea as you arrive by boat to a 2km stretch of beach, cosseted by forested mountains. The magical sense of seclusion is mixed with villas that are truly out of this world. Each has a huge metre-deep wooden tub, deluge shower and  its own private pool, some under palms in the garden, several on the hill with views across treetops, others built into the rocks with steps down to the sea. Whichever one you pick, you'll find luxury at every turn: this is the real thing…