2024 Cobalt Boats R4 Surf, SURF, SURF and SURF! You need to check out the color design on this brand new R4 Surf. It is absolutely a stunner! The beauty about Cobalt and it's surf gate technology is that you can give the rider an amazing experience with an incredible wave and when your done you still have the quality and comfort that a Cobalt boat is known for. Stop by Goodhue Sebago and speak to one of our boat specialists and let's get you underway!