Mel, Joy, Robbie & Alice,
I believe that once a site is canceled it becomes available to the next caller, regardless of who they are. Perhaps if Mel calls and mentions that Robbie wants the site as part of our group it can be handled with a minimum of fuss. They are closed this time of year, but I imagine you'll get someone to answer if you call during the hours listed below.
I'll try to get in touch with the manager out there and double check the policy as I've had a few others ask also.
Call for Reservations or Information @ 530-926-2618
TOLL FREE - United States, outside 530 area code - 1-888-926-2618, 8 to 5 PST
Open April 1st - October 31st