Located on the lower level of the Catalina Casino, the Avalon Theatre can seat 1,184 people. The theatre is 138 feet across and 43 feet high. Art Deco murals by John Gabriel Beckman adorn the walls and create a glamorous ambiance. This theatre is well insulated so full concerts and events from the Ballroom cannot be heard, yet the acoustics are so good that a speaker on the stage can speak in a normal voice without microphone and be heard clearly. This site is ideal for large lectures and conferences. It has just undergone a complete sound system upgrade with Dolby surround sound.