Do you have to have reservations or are there some first come first serve spots or dispersed camping around here?

There are reserve sites at hahns peak lake campground. I have never reserved and always have found a site. There are dispersed sites. All around this area right outside of hahns peak lake campgrounds. Within a 5 to 10 min bike ride to lake.

There are a few sites that are not reserveable, no dispersed camping anywhere though