Club Floreasca

Does the job.
Keep in mind it is state owned, old style, communist relic but prices are accordingly much cheaper.
Gym is adequate and offers plenty free weights and various apparatus, swimming pool is good and long
Great sitting and tanning lawn outside with nice view of the lake, bar with drinks and food.
Open 7 days from morning till evening, the personnel is nice and they have parking.
Yes, things are old and cleaning can be better, showers and outside of the changing rooms
If you are after the gyms like worldclass and such this is not the place for you, this is more of an old style country-club.
Sursa: Google

Best Lemonade in Bucharest.
Nice pool, clean.
Sursa: Google

A little bit communist . Old fashion food, but fresh and tasty. You may try but not too often.
Sursa: Google

If nice weather, this place is great to chill out, swim, sunbathe, eat.
Sursa: Google

Awful, dirty dressing rooms and showers, bad facilities. Too bad that it didn't burn to the ground so that all of it would be renovated.
Sursa: Google