After we enjoyed the Desert Safari Tour, we received a lecture from Eco-Rangers, who specialize in environment. They taught us original mammals in Morton Island. Their lecture was interesting. After that, we gave a presentation to my friends and Eco-Rangers. We had been preparing it for this trip, so we got tired up. As a result, we succeeded in our presentation. In the end of Day4, we fed the wild dolphins. They are bigger than I had expected and very cute. It was a wonderful experience. (S.S)