How deep is the water? Is there a children's water play area?

In the spring swimming area there is 2 parts that are 19 and 20 ft deep, average is 8 except the shelf around the edge is like 3-4 ft

Smaller Kids need flotation devices. You should know how to swim here in my opinion

Yes there is a children's area, 3 ft to 20 ft deep with no life guard.

The water is 3 to 8 feet