The glass sightseeing boat is sent to the semi-submersible sightseeing boat, about5-10 minutes away from the shore. The semi-submersible sightseeing boat is basically fixed. The internal space is relatively narrow and bumpy. We have 7 people in a boat, vomited 2 people, and dizzy 2 people. Inside, we insisted on 10 minutes to collectively retreat seasick people. It is recommended to choose carefully. The sea is not very clear, only one free-range fish is seen