The largest hotel wave pool in Orlando belongs to Omni Orlando Resort at ChampionsGate, with a wave pool holding an impressive 131,000 gallons of water and covering an area of 7338 square feet. For a Resort to have a large wave pool and be exclusive to guests staying at the hotel is quite amazing. Sitting by a regular pool is fun, but this wave pool delivers rolling waves in a tropical setting, with plenty of space to spread out and enjoy the action.