This water-sports store has everything you need for an active vacation under one roof. Purchase rash guards, swimwear, T-shirts, footwear, hats, and shorts. Book scuba-diving tours and lessons and rent kayaks, snorkeling or scuba gear, spears for free diving, surfboards, stand-up paddleboards, and bodyboards. Experienced surfing instructors will take beginners to the small breaks on the North Shore beaches, with their notoriously huge (winter) or flat (summer) waves. Warning to fishing enthusiasts: a fishing pole is the one ocean apparatus this shop doesn't carry.