We stayed in August after making reservations in February.  Highs were in the 80s, but our site stayed shady all day with just dappled sunlight.  Lows in the low 50s.
Sites vary in length and width, besides the driveway, and some are even split-level due to the terrain.  Separation between sites varies, too - sometimes ferns and many big trees between sites, sometimes just one tree at the back of the site.
No water or power hookups, or sewage dump, but complete restrooms (although the showers were closed due to COVID-19).
Easy beach access, and the Detroit Lake water was warm.
Very quiet at night, besides some noisy campers, because Highway 22 is on the other side of the lake.
Boat launch has a restroom and huge parking lot.

At the time of this review the rates were a bit expensive $24 a night, so deduct a star for price. Another star deducted for the feeble firewood stacks you can purchase for $6. Our stack contained 4 sad little logs with about 2 hours of max burn time if you know how to stack a fire well. 2nights with 2 sad stacks of firewood will sting you $60 which imo, is a bit expensive for camping. It’s a Decent site for those looking for a relatively close to Salem and fun water play weekend during the summer. Camp site stays a bit noisy until about midnight over the weekends so not recommended for those seeking a quieter more sedated experience or looking to go to sleep earlier in the evening. Sites are average in size and spaced average apart from one another. The more desirable lake facing sites reserve fast over the summer weekends but have good access into the lake. Camp site hosts are grumpy, but I’d guess 50% usually are. Drive in from Detroit takes about 15 minutes. Comparable sites on a short drive either side down the road. Positives are the running water restrooms, garbage disposal and other city camping commodities.

This camp ground has has spacious sites and room enough at most for an RV pad with a couple of tents. Portable water stations, fire rings, benches/tables and restrooms. Great shower facilities and a beautifully taken care of campground! Dogs welcome.

These sites are reservable, but many are first come first serve.

Cove creek campground is an hour away from Salem sitting above the south side of Detroit lake, on the right hand side of the road once you arrive in Idanha - off hwy 22 and blowout road. This campground is first come, first serve with both walk up and reservable sites. We stopped here during Labor Day weekend and there were still spots available and we were surprised! This campground is large and includes bathrooms, showers, and is short distance from Detroit Lake. There are trails nearby for hikers and the roads are paved for bike riding. You can access forest roads at the end of Blowout if you’re looking for adventure. We prefer this site in comparison to Hoover campground, Santiam Flats campground and Southshore Campground!! See you soon!

This is a great campground for families with young kids. The sites are nice and big, and you don't feel like you're right on top of the people next to you. They are also well shaded - we were there during a heat wave, and we were able to stay cool under the trees. You are a short walk down to the lake from pretty much anywhere, and there are a variety of different beaches. There is easy access to clean bathrooms with sinks and toilets, and there are even coin-op showers.