You can tell when you are getting in the deep water as it goes from concrete bottom to vinyl liner smooth bottom. I am 6'2" and it gets well over my head.
It definitely goes over twelve feet in the deeper areas but I didn't get a chance to really explore it. They have an area for small children on the far right that doesn't go over about knee deep though. It's between the tiki hut (next to last on the right) and the little island which has the last tiki hut.
I would say close to 20 feet
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