Aquatic Center Discontinues Lane Reservations COUNTY News: Los Alamos County Walkup Aquatic Center will discontinue the need of lane reservations and will begin recreational swimming sessions in the shallow end of the pool beginning June 28. Also starting June 28, locker rooms will be available for use after a swimming session has been completed. Locker rooms will not be available beforehand, and Aquatic Center staff asks patrons to continue to come work out ready. Recreational swim sessions will be offered several times a day, Monday through Friday, swimmers will be expected to exit the pool at the end of each session to allow others to enjoy the water and get a break from the heat. Recreational sessions are limited to 34 people due to staff and lifeguard shortages.