booking with Klook is fast and easy. Bluewater Sumilon island resort is superb. Nice beach and infinity pool. buffet lunch is so-so. would have been better if more food variety are added to the menu. at the pier, you need to follow up the frontdesk staff because they tend to prioritize check-in guests in the loading to the boat. day pass guests get its ride in later boat trips, therefore we had shorter time in the island even though we arrived earlier at the pier.