Tucked in the basement of Siam Paragon, Southeast Asia's biggest aquarium is home to over 9,000 marine creatures and 400 aquatic species. The aquarium also offers family-friendly interactive activities such as diving with the sharks, 4D cinema experiences, creature feeding, back-of-house visits and even real ocean walks in wetsuits. Be sure to check activity times prior to your visit. We also recommend making advanced reservations, as there are limited spots for each activity per day.