From the Oregon State Parks website:
Situated half way up the Oregon coast and three miles south of Florence on scenic Highway 101 is the second largest overnight camp in the state. There are two miles of sand dunes between the park and the ocean. Two natural freshwater lakes are within the park. Cleawox -- which is great for swimming -- and Woahink, which has a public boat ramp, is used for all water sports. Rent a canoe and explore the lake. My favorite spot on the Oregon Coast. Miles of dunes, and awesome fresh-water lakes.
When I was a teenager, my uncle brought my dad and I here. I challenged my uncle to a race on the dunes. I won. Running backwards. He pulled a hammy. I'm not sure why that memory sticks in my head, but it does.