About Sundown Marine Sundown Marine in Glenpool, OK offers a wide selection of the best Tracker Boats, Sun Tracker, Nitro Performance Fishing Boats, Tahoe, Mako, and Mercury brands. Get out on the water today with Sundown Marine. Product Lines are Tracker Aluminum, Nitro Bass Boats, Sun Tracker Pontoons and Tahoe Runabouts. Exclusive Mercury Outboards and Mercruiser Stern Drives.