We stayed at Kohler-Andrae last weekend. Heavily wooded sites with good spacing. Park is just south of Sheboygan along Lake Michigan, with beautiful beaches and sand dunes. Expect to hear the dull roar of the waves throughout much of the campground on a windy day, which is not unpleasant at all. Bathrooms are clean as are the vault toilets throughout the park. Due to COVID 19, the concessions stand, wood sales, and ice sales were closed. Plenty of hiking trails throughout the park, and many restaurants in nearby Sheboygan if you get tired of cooking. Bring bug spray, because the mosquitoes are FIERCE in this park. There are some undesirable (in my opinion) sites right along the entrance road (which are little more than parking spaces on the road), but people with big motor homes would probably be OK with them.
All in all, a very pleasant park!
All in all, a very pleasant park!