tropical rainforests of the world, and life inside their rivers. The exhibit features macaws, red-bellied piranha, freshwater stingrays, emerald tree boas, poison dart frogs, archerfish, arowana, and skinks. The Sunken Temple showcases species such as lionfish, Goliath bird-eating spider, porcupinefish, an electric eel, and a reticulated python. The Gulf of Mexico exhibit features an oil rig habitat theme that includes a nurse shark, snapper, redfish, tarpon, jacks, blue runner and more. Discovery rig features sea horses, discus, triggerfish, a dogface puffer, a chuckwalla and more. It also accommodates a touch screen Ocearch shark tracker. The White Tiger of the Maharaja Temple exhibit houses the aquarium's white tigers. (On September 19, 2016, Downtown Aquarium, Houston, was served with a notice for animal abuse concerning the "deplorable" living conditions of the housed tigers, which are members of an endangered species. This prompted the construction of an outdoor expansion to the exhibit.) Stingray Reef allows you to get up close and personal with the stingrays. For a small fee, you are able to feed the stingrays as well as touch them. Other attractions Shark Voyage, a narrow gauge C.P. Huntington train ride, tours the entire property and stops in the center of a shark habitat to let visitors watch and learn about the sharks. The shark habitat viewed from the train is in a separate building from the main aquarium. This train is the first electric CP Huntington train. Other facilities on the aquarium property include two restaurants, a bar, and banquet facilities in the main building; and the Diving Bell Ferris Wheel and an aquatic-themed carousel outside. One of the restaurants includes a centerpiece aquarium which is the largest cylindrical tank in the United States. There are two additional rides; Lighthouse Dive, which is a drop tower, and the Frog Hopper ride for younger children. The facility also features carnival-styled games. Incidents and accidents On July 12, 2009, two miniature trains collided in the loading area. According to officials one train hit the back of the other, forcing two cars off the track. 31 people were injured and 27 were taken to the hospital. Nobody was seriously injured, and there was minimal damage to the trains. On July 9, 2021, 28 year old Gabrial Vargas was killed when he and his wife were shot while having dinner. The gunman, 39-year-old felon Danny Cazares then killed himself. On September 2, 2022, A part