Willamalane Park Swim Center, 1276 G St., will be closed through Sept. 20. During this time, Splash! at Lively Park, 6100 Thurston Road, will remain open for patrons seeking lap swimming, water exercise and waterpark swims. When Willamalane Park Swim Center re-opens, Splash! at Lively Park will be closed Sept. 21 through Oct. 18 for annual maintenance.