We have several lakes that are rock bottom and truly beautiful. Surprisingly clear water. I am a get diver, so I get visibility. For those us who are adventurous (hand raised) we do a 1/2 mile 'fun run' swim across one section of Center Hill Lake every year where we also workout and a have a big barbeque. A very fun day. The lake is Core of Engineers controlled, and they do Not like us doing it but have always allowed it and keep boats near.
20-years ago, we did it with our uniform on. Why? I don't recall, but it was neat seeing 20-30 white uniforms going across the water. Life jackets were/are optional and we always have two boats in tow.
There are manmade beaches on parts of the lake where we have worked out. But the Lake is over 2-hour away, so organizing a big trip still has its challenges.