Odyssey of the Seas will also be home to the SeaPlex, the largest and most revolutionary indoor space at sea. Similar to other Quantum Class ships, this SeaPlex will have a trapeze school, a full-size basketball court, a roller skating rink, and bumper cars.

Odyssey of the Seas does not feature a traditional ice-skating rink like Royal Caribbean’s Voyager, Freedom, or Oasis-class ships. Instead, it is equipped with the SeaPlex, which is the largest indoor active space at sea. In 2026, the SeaPlex serves as a multifunctional arena where the floor can be transformed for roller skating sessions, complete with a high-energy soundtrack and disco lights. When not being used for roller skating, this massive space is utilized for the first-ever bumper cars at sea, a full-size regulation basketball court, pickleball matches, and even a circus school with a flying trapeze. While fans of "Ice Games" shows might miss the frozen surface found on other ships, the SeaPlex on Odyssey offers a more versatile and technologically advanced sporting environment. By night, the venue often hosts glow-in-the-dark laser tag or transforms into a high-tech dance floor with a floating DJ booth. For those specifically seeking an ice rink, you would need to book a voyage on a different class of Royal Caribbean ship, as the Quantum-Ultra class focuses on the flexible "active" thrills provided by the SeaPlex.