[Sylvanfan]

Yeah, if the tour is going to be an all day sort of thing than it may be worth doing it on the ship, especially if you have to use tender boats to get to the port from the ship for that reason.

I did a Norweigan cruise in Hawaii and booked my round of golf through the ship. Found out that it cost me $10 more than the rate at the course but they also provided transportation to the couse and the tee time so it was well worth it. But if a tour is 4 hours and the ship is in port for 8 you can save a fair bit.