First time coming to Lake Olathe. We came here to take the kids on the obstacle course that they have.  I personally thought it was bigger for adult use also, but it appears to be only for kids and that’s all I seen use it was kids which is fine.  Once you purchase a time for the course, you have to go out at a certain time for 1 hour usage.The beach area was clean, small but clean. Plenty of life guards. Had a shower/wash off area and can purchase food and eat under a shade area. The facility was clean and nice overall.  I don’t know about the restrooms as I didn’t use them. We will come back.