Long Beach Arena 300 E Ocean Blvd, Long Beach, CA90802 Long Beach Arena is located in the Long Beach Convention & Entertainment Center. The exterior is covered by one of…More the world's largest murals, "Planet Ocean." The arena can seat up to 13,500 people. The lower concourse and seating area have 29,000 and 46,000 square feet of available exhibit space, respectively. A floor plan is available at the Long Beach Convention & Entertainment Center's website.