First W Retreat in Southeast Asia to Feature 75 Villas, Brings New Dimension of Modern Design and Contemporary Lifestyle to Thailand. W Hotels Worldwide has announced the spring 2010 opening of W Retreat Koh Samui, the first W Retreat in Southeast Asia. An all-villa beachfront resort set on the north shore of Thailand’s Samui Island, W Koh Samui will bring cutting-edge design, contemporary lifestyle,...