Last evening I was visiting St. John's and took a drive out to Middle Cove Beach - about 15 minutes drive from downtown. What a cool aspect about the place; absolute nature just outside the city and everywhere else in the province. I arrived just before dusk and the waves were pounding the shore - beautiful. Also, the roar of the ocean was everywhere. It was a bit chilly with the wind, but tolerable.
Get out and enjoy these beaches, just keep a safe distance to avoid being swept out to sea. I've pasted in a video below from the beach, though the seas were not quite this rough on my visit.