SwimLabs Swim School’s instructors have two priorities: teaching kids and adults how to swim and helping competitive swimmers optimize their strokes. In addition to CPR and first-aid certifications backed by years of experience, the instructors are aided by swimming-pool technology. Their private and small-group lessons take place in SwimLabs Pools with adjustable currents, each about 10’x16’ and heated to 90–92 degrees to prevent polar-bear infestations. The custom currents can give beginner students a boost or challenge advanced swimmers with more forceful resistance waves. As swimmers paddle against the current, the staff records their strokes with Dartfish video technology. They then analyze the results together, comparing the swimmer’s form to a video of proper technique.