Travelers are voting Underwater World Pattaya as the best aquarium in Pattaya. There are 1 aquarium in Samut Sakhon a city just 47 km from Pattaya and 2 aquariums in Bangkok which is 51 km distant. The most popular of these are Siam Ocean World in Samut Sakhon and Bangkok Aquarium in Bangkok. You can find 4 aquariums in Eastern Thailand and 12 aquariums in the country of Thailand. Our members favorite in Eastern Thailand is Underwater World Pattaya and Siam Ocean World is the top pick in Thailand. Want more? Check out our map of aquariums in Pattaya.