Underwater World Pattaya is the largest and most modern ocean aquarium in Asia. Underwater World covers an enclosed area, something like a tunnel constructed under water. It is actually a 100-metre-long, 6.4-centimetre-thick acrylic pedestrian tunnel through an underwater environment. This enormous water structure is filled with dozens of marine species. Underwater World Pattaya is the newest attraction in Pattaya, Thailand. Underwater World Pattaya is located just 200 meters south of Tesco Lotus in South Pattaya.The new theme park of Underwater World Pattaya covers a total area of 12-rai and is housed in a structure similar to a large circus tent. The aquarium houses more than 4,000 marine animals, comprising more than 200 different species from the region as well as some rare creatures from different parts of the world. The rare shovelnose ray, a hybrid between a shark and a stingray tops in the Visitors must-see list.