The 5,000 seat Aqua Theater on the southwest shores of Green Lake was home to a dazzling “swimusical” known as the Aqua Follies. Aqua Follies included a diving show with breathtaking high dives as well as comedy skits and diving. The Aqua Dears, 30 female synchronized swimmers, performed ballet in the water while the Aqua Darlings, 24 dancers presented the stage ballet. Performances at the Aqua Theater were produced and directed by Al Sheehan. The nightly shows, including moonlight matinees that started at 11:15 p.m., were the entertainment highlight of the world’s greatest water carnival. Bob Hope, Bert Parks and a number of Olympic divers were just some of the famous performers at this unique outdoor venue. The Aqua Follies played a significant role in the Seafair festival between 1950 and 1965.

Performances
Countless have acts performed at the Aquatheater during its 1950 - 1970 lifetime. Here are a few interesting ones I've stumbled across. Feel free to add more.

• Led Zeppelin - May 11th , 1969 - as part of their second US tour
• Grateful Dead - August 21, 1969 - 4 days after Woodstock!

Today
Here's what the site and remaining bleachers look like today in a nice 3d panorama.
http://www.vrseattle.com/pages/vrview_fs.php?cat_id=524&vrs_id=vrs1018
Known as the 'Big G' for the large white G painted on the bleachers, it is a popular place for friends to meet before a trip around the lake.