Ko Samui, Thailand offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Trachilos, Crete, Greece, is known for the Trachilos Footprints, which are ancient hominin footprints that provide significant insights into early human evolution. The best time to travel to Ko Samui, Thailand, is from December to February, with average air temperatures around 27-30°C (81-86°F) and water temperatures about 28°C (82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!