Yalong Bay undersea world project is very good, staff service attitude is very good, will tirelessly help us solve the problem. Although there are many divers, the staff are arranged in an orderly way and there is basically no queue. Deep and shallow coaches teach courses very seriously, and the underwater coaches are very good, especially patient to teach us. After landing, ginger soup and bath towels were also prepared for tourists. In a word, everything is arranged properly. A very pleasant trip.