Bukit Ketok, Indonesia offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Bukit Ketok, Bangka Belitung Islands, Indonesia, is known for its scenic landscapes and proximity to the beautiful beaches of the Bangka Belitung Islands. The best time to travel to Bukit Ketok, Indonesia, is from May 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!