At Sigma Performance Swimming, dedicated instructors coach everyone from toddlers taking their first splash to adults training for professional trials. The waters in 25-yard indoor and outdoor pools are churned to a froth as swimmers work to hone the school’s three focuses: technique, speed, and endurance. With a ratio of five students to one instructor, pupils are granted ample individual attention as they learn basic aquatic strokes. Students can consult footage of their form during an underwater-stroke analysis to further refine their technique. As their talents grow, swimmers can join Sigma’s nationally competitive teams or set personal goals, prepare for races, and perfect their sailfish Halloween costumes.