Thinking of extending my trip to Prague (instead of Vienna-Bratislava) in July, I was wondering if there are any spas, naturist spots, baths in Prague like in Budapest.
I would appreciate any information on this and generally on Prague's night life, for an open minded, willing to enjoy holidays, guy

Prague is a gorgeous city. I know nothing of the nightlife, but the daylife is lovely.

There is plenty of nightlife in Prague, but much of it is dodgy. There are plenty of honey traps, so you need to be careful, especially if you are on your own.

Some of the nightclubs in Budapest, especially strip clubs, are also tricky territory for the lone male traveller.

If you really want to try the scene, seek local advice, say from your hotel or hostel.

Thank you for your information

I don't know of any spas in Prague but Carlsbad (Karlovy Vary) is a very famous spa in the Czech Republic.

http://www.czechspavacations.com/index.html