Seaberg Pontoon Rentals offers half day rentals (9am-2pm, OR, 3pm-8pm) for $200 (tax included) plus the cost of your fuel. and full day (9am-8pm) rental for $350 (tax included) plus the cost of your fuel. Seasonal. Open daily from 9a.m. to 8p.m. weather permitting. Grand Island, Pictured Rocks, lighthouses, shipwrecks, sandy beaches, waterfalls and much more! Pets welcome!!!