Editor’s Note: Eighth in a series that journals our feature writer’s new experience with some of the Jersey Shore’s best choices in summer recreation.

I’ve done some pretty body-intense things this summer, from riding a waverunner in 25-mile-an-hour wind, to practicing yoga on a stand-up paddleboard in the bay. But out of all those exhausting activities, none of them compared to the grueling workout I underwent during a one-hour beginner’s session of surfing with Jeff Santoloci, owner and head…