The buy-one-get-one-free offer for both adults and children is truly great value. You can scan your ticket directly for entry and avoid queuing to exchange tickets. Although it was a Sunday, it wasn't too crowded, making it easy to explore, and we didn't have to wait long for any of the attractions, which was fantastic. The mermaid show requires an additional purchase, but it's well worth watching. We had a wonderful time participating in all the activities throughout the day. My favorite was the comfortable underwater world. Although there wasn't a dolphin show, I hope dolphin viewing will be available in the future.