How to run barefoot? In what place can I do this?

I use to run twice a week for years and have always done it with running shoes and socks.
But I now want to try barefoot running because it's too hot to wear running shoes un summer. I sweat excessively and don't want to ruin my shoes. I also can't stand having closed shoes when it's hot.
Can you give me some advices about barefoot running?
How to run barefoot? In what place can I do this?
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