Mae Nam Trail, Koh Samui, Thailand

A trek to tropical Koh Samui’s interior mountains offers a pristine and tranquil jungle with secret waterfalls, hidden villages and charming Buddhist temples. The Mae Nam trail begins above Mae Nam Beach on the small road signposted for quad bikes but detours to a steep seven-mile track leading south to Lamai. The three-hour trip provides spectacular ocean views through lush coconut plantations and waterfalls, and emerges at Tamarind Springs Spa, which offers complimentary transfer with treatments. The new Conrad Koh Samui offers family-friendly elephant treks and excursions to butterfly gardens and rainforest zip lines. Oceanfront villas, from $556; conradhotels3.hilton.com.