UFO Sighting in Waukesha, Wisconsin on June 11th 1964 – 3 disc shaped craft across Lake Waubesa toward Madison 1964-65

My family spent some time every summer at my great grandparent's cottage on Lake Waubesa. The cottage was located on the eastern side of the lake on Crescent drive, south of the Lake Waubesa bible Camp. I don't know the exact month, date or year but it was before 1966 and probably was 1964 or 65. We were friends with the people who owned the 2 cottages nest to us. The adults went in the boat to the bar across the lake and left all of us kids, approximately 10-12 of us, at the cottages. It was after dark so probably between 9-10 pm. We were outside playing and noticed 3 discs with 3 different colored lights on the perimeter edge. I'm not positive but I think the lights were spinning around the edge or blinking. They were located northwest to where we were, towards Madison. They sat there and we discussed them and one of the older girls said that it was a flying saucer or UFO. They weren't too high above the horizon and were across the lake from us. No sound or movement was noticed. We got scared and ran into the nearest cottage. We told the adults when they got back but they didn't see anything. I recently asked my sisters about it and one remembered the event as I do, one said she doesn't remember it at all, and I never heard from my 3rd sister. I don't know how to get a hold of the other people. I would have been about 9 or 10. The cottage was torn down a long time ago and was replaced by a large home.