Spent a couple of nights here recently and really enjoyed the solitude. Trails are all marked and the proximity to the lighthouse was nice. Weather was cool and varied between clear and partly cloudy with a light rain for about an hour one morning. Site is on a relatively open, low bluff that overlooks Lake Superior to the South and has fire ring with grill grate, half a picnic table, a locker for food / gear, latrine and tent area padded with wood chips. Trees on site were perfect for my hammock. Waves crashing below site were calming and put me to sleep both nights - was much like beach camping in my home state of California! I did not hike the surrounding trails much as this was more of a short reconnaissance trip for future visits. If you plan on swimming be sure to bring water shoes! Pebbles/rocks are tough on bare feet.
While there I also took the opportunity to scout backpack site 1. This site has same amenities though it is more sheltered by trees. There is a short path that leads down to the water’s edge and a little swimming cove that could be cool for shallow rock diving. Large, flat granite formations for sunning yourself as well. Either site is awesome and Split Rock I’ll definitely be back!