Eco Treks Eco Treks, located at Cow Bay in Prince Rupert, offers kayak rentals, training and guided tours of the area. Tours range from half-day trips to two-day excursions to Zodiak Island the grizzly sanctuary. Address: 203 Cow Bay Rd. Prince Rupert BC CAN V8J 1A2 Send an Email 1 250 624-8311