Yes, you can walk to the beach. A "nature trail" leads down to Alsea Bay. We had the beach to ourselves the night we stayed. You are almost beneath the Hwy 101 bridge that crosses the bay. Nice clean beach with rocks and driftwood.

The campground itself is tidy with a nice office/gift shop and helpful, friendly staff. Pricey though. We don't go to a KOA for privacy. The sites are packed together like at most KOAs. We go for the facilities - clean showers and maybe use the laundromat. Some sites are bigger with chairs and fire pits. We had a smaller one with full hook ups and a picnic table.