Lake Cahuilla County Park at 58075 Jefferson Street, La Quinta, California.

I just hiked to this lake on The Cove To Lake trail (7 miles / 10 Km) for the round trip. Beautiful place for a picnic and great playground for the kids. If I had my bathing suit I would have dove right in but not sure if it is allowed (It was a very long and hot hike and I still had to hike back) If you are starting from the lake start walking on the north side of the golf course along the base of the mountain. There are lots of signs if you are in the right place. Bathrooms were a little to desire but I was glad they were there.