We are headed to the Big Island in a couple days and want to do a little planning for the back-end of our trip. The day we have to come home we fly out at 7:00 pm, and are trying to figure out what to do with that day. We will have to check out of our condo on the early side. We will fly out from the Kona airport, so I guess it makes sense to find some activities within 20 miles or so of the airport to keep the stress levels down. Does anyone have some good recommendations as to what activities would fit in that don't involve changing clothes or higher levels of physical activity so we don't feel like we want a shower before a 9 hour flight home? We are open to most any idea as long as it is easy and safe to leave a car with luggage in it.