Magdalen Island Cave Swimming

Technically, this wet activity on Quebec’s gorgeous Magdalen Islands is called Cave Swimming. Don a thick wet suit, jump into the crashing waves of the freezing Atlantic, and allow them to smash you against the red cliffs that surround the archipelago. Remarkably, the waves buttress your impact, washing you in and out of crevices and sea caves. It looks, and feels, like you shouldn’t survive such an onslaught, and yet this commercially operated adventure is mostly harmless.