Rayong Aquarium is a public aquarium in the town of Rayong, operated jointly by the Department of Fisheries and the Eastern Marine Fisheries Research and Development Center. The facility houses 43 tanks of varying sizes, an underwater glass tunnel, an outdoor shark and ray pond, a shell museum, and fishing boat exhibitions. Visitors can observe a wide range of marine creatures including cuttlefish, crabs, giant clams, horseshoe crabs, and various reef fish, all presented in exhibits labelled in both Thai and English. The aquarium is known for its locally rooted, educational approach and affordable admission, making it popular with families and school groups. Located approximately five minutes from Ban Phe Port, it opens Wednesday through Sunday during morning and afternoon hours.