Fort Worden State Park is on the grounds of an old military base and therefore has all of the quirks of its history. This is a popular park and fills up quickly. The camping area is crowded without much to screen you from the other campers, or for that matter the weather. So, If you are looking for privacy you will not likely find it here.
But, you will likely see the greatest sunsets of your life here while standing atop the battlements of an old fort.
Has accommodations for hikers and bikers.
My wife and I stayed here as part of our west coast tour. It has great views of the water and excellent accommodations for hikers and bikers. It's a really beautiful park.
My wife and I have stayed at this park several times in the past two years. The lake is the main attraction. The park doesn't offer much in the way of hiking or additional activities other than hanging out by the water or your site.
The swimming portion of the beach is rather narrow, and doesn't offer much in terms of space to lounge. The rest of the shoreline is covered in rocks to prevent erosion.
The sites don't offer much privacy. The camping areas are rather open and exposed. There are few trees dividing the spaces, so the camping experience can feel a bit more communal than most.
If you are biking in, expect a lot of sidelong glances. This is camper territory. No hiker/biker sites. The showers are free, however.