Great place for a weekend camping trip of kayaking and some hiking.
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Con's
We stayed at site 60 for a weekend. We got lucky and was pretty quite, since we didn't have any RV's running their generators next to us (there is no electricity at any of the camp sites) . The modern bathhouse is clean and well maintained, didn't look at the pit toilets since we brought our own. We had plenty of room at our camp site for all of our stuff. There is a lot of good short trails at Shades, that connect to a central picnic area with a modern restroom. There is also Pine Hills Nature Preserve right next to Shades with turkey & devil's Backbone (natural land bridges), and other neat rock formations.
We spent a week at spring mill state park. The site we where at was heavily sloped, the only flat part was where they put the fire pit at. When we looked at the other site most of the shaded sites that had some privacy where also heavily sloped, the best site we found was #9. The village, twin cave tour, and trail 4 where fun. But we weren't fond of the other trails we where on, they didn't have many view but trees (which would of been better if it wasn't so hot at the time).