Paddling a double sea kayak is a fun and unique way to explore sydneys middle harbour choose your own adventure paddle to some of sydneys most pristine beaches get a glimpse out the heads to the pacific ocean or glide pastthe lush bushland of the garigal national park while looking forwildlife in their natural environment double kayaks are nice and stable the deluxe doubles are made of lightweight materials like fiberglass kevlar or carbon fiber less weight means less resistance thr