How to book Itha underwater restaurant in Lido, Hilton Port, Maldives? Should I make an appointment with the hotel after I go to the island or with the travel agency before I go?

I work here! Wait till you get to the island. . . But there are many people in China now. . . That seems to be the way it is. . . Why not book earlier? It's not worthwhile at night. . . Suggest noon, but I said. . . The food in the submarine restaurant is not delicious. . . Just looking at the scenery. . Maybe I'm tired of watching it. . The guests are quite happy, hehe. . . But to tell you the truth, you can order champagne, like more than 50 yuan a person, and then drink champagne there. . . You don't have to eat, it's cheap and you can see the scenery. . . Personal point of view. . . .