Charter a car for a day, customize your itinerary, and there's no tour guide. It's very exciting to go up mountains and down to the sea. If you want to go into the caves, you first need to take a small boat across the sea. You will get wet when boarding the boat on the beach, so your backpack/bag needs to be waterproof. Climbing natural stone steps up and down the mountain continuously requires a certain level of physical fitness and knee endurance. The national park has a large wetland area; if you visit during the lotus blooming season, you must take a small boat to weave through the flowers. Walking on the wooden boardwalk, you will also see many migratory birds, but unfortunately, I didn't have binoculars or a telephoto lens to clearly identify them. Finally, we took a boat to The Kissing Cave, a recently popular attraction, stopping at several spots along the way for photos. Overall, it was an unforgettable experience.