One other thing to think about a tent site is that they are water and electric only. They don't have a sewer connection and the Fort does not have a dump station. That is one of the main reasons that the tent / popup sites aren't recommended for anything but tents and popups. If there is an empty full hookup site, you may be able to use it to dump, but that is a pain in the posterior and if the Fort is truly booked up, there may not be an available site to dump in. If you are going to be there for more than a night or two, you may want to keep trying to upgrade at least a full hookup site. Also, have you taken a look at any of the other campgrounds in the area to see if they have any availability? I know... it's not the Fort, but it is another option to take a look at. PM me if you want some recommendations.