There are many military training programs that require some level of proficiency in swimming, either to survive for long periods of time floating, swimming or SCUBA diving with speed and efficiency.

When Adriana Issakov opened La Jolla Swim and Sport at 1008 Torrey Pines Road in March 2014, she completed the décor by hanging a sign out front. It read: Free Guided Cove Swims. “It’s remarkable ...