Marang Kayu, Indonesia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Marang Kayu is known for its proximity to the lush rainforests and the Mahakam River, offering unique eco-tourism experiences in Kalimantan Timur, Indonesia. The best time to travel to Marang Kayu, Indonesia, is from June to September, with average air temperatures around 27°C (81°F) and water temperatures near 29°C (84°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!