Hathaway Brown is proud to be one of the few girls' schools in the country with its own aquatic center, the Carol and John Butler Aquatic Center, dedicated in 2005. Designed by Graham Gund, the Center is home to the Blazer swimming and diving teams. The pool has eight lanes, a diving well and a three-foot deep instructional area. The electronic scoring and timing system is provided by Daktronics, and the pool grandstand seats 150 people. Men's and women's locker rooms are available. The Butler Aquatic Center is proud to host American Cross Swim Lessons and Certification Classes while being a site of the Lake Erie Silver Dolphins swim team.