The latest season is set on the beautiful island of Koh Sumai, which will undoubtedly lead to an influx of tourists. Fiji's Malolo Island offers a similar idyllic tropical getaway—without the crowds.

If it’s palm fronds, sugar-fine sand and sunrise yoga overlooking the ocean, you’re picturing Koh Samui. The most postcard-perfect Thai island, Samui is for many the gateway to a life-long ...