Since they don't have water hook-ups, is there a spot at the campsite where you can fill up your water tank on a travel trailer?

I wouldn't use it. We saw IDIOTS using the hose to clean their septic tanks. The place is a sewer all the way around. We left on our second day there. Highly advise elsewhere

Yes

Thanks so much! I just got here. 😅 I saw that there is a hanging blue hose for black/grey water flushing. There is a separate water connection a ways down for drinking water. There is no hose supplied, though, you have to bring your own hose to fill your fresh water tank.