Nha Trang is a beach town on the South China Sea coast of Vietnam. The town is full of dive/snorkel tour companies that take tourists out to several islands off the coast. I went with Rainbow Divers. Nowadays, since dive charters around the world refuse to answer e-mails anymore, it was almost shocking when they quickly responded to my e-mails. I went out on their boat (Jun. 12, 2019) to Ho Mun Island which is a marine park and probably the most popular island for dive charters to visit. We dove 3 sites (Mama hanh, Madonna Rock and Seahorse Bay).