Introduction to the sea-viewing trail: Walking along the sea-viewing trail, you will see the cliffs of Tianmen Peak, the colorful rhyolite, the bottomless Poseidon Cave (Dragon Girl Cave), Xianziyan, Toadmen, Longwang Cave, Ruyi Cave, Crocodile Rock, Linglong Stone, Bubble Rock and many other sea-eroded natural landscapes and volcanic geological landscapes 80 million years ago (volcanic lava, rhyolite, red rock, Linglong Rock, Sea rocks and sea stacks) can be seen at a glance.