Rent a car! It would be cheaper then taxis everywhere and far easier then hotel shuttles. Most hotel shuttles run only on a certain schedule, which may not be yours. Call the hotel and ask the schedule and practices i.e. do they go back and up when there are too many people for one shuttle? do they require reservations in advance for the shuttle? Don't forget, the car will save you time and aggravation, both of which may well make it cost effective for you. We rent a car on all off trips, which are usually offsite.