We rented a pontoon boat for 1/2 day (4.5 hours) from Scotty’s Boat Rentals. The cost was $299 for the half-day with a 70 HP pontoon boat (it would have been $349 for a 90 HP boat). We had a great time taking the boat to Shell Island, exploring, and generally boating around. On the return trip, we traveled slightly north of the rental spot and briefly had a dolphin check us out.