FITNESS,GYM,PILATESetc what doUrecommend in Izmir?

HELLO DEAR internation FRIENDS,

I m Polish and Im living here sine few months, I ve been teaching dance since Protected content I really do miss some good activities here in Izmir. I would really like to go for some fitness or gym or swimming pool, but I havent seen anything good yet.
Can you recommend sth?

Maybe some of you have some nice places in their list or even attend weekly? Is anyone of you going to such places like fitness, gym, pilates, zumba or swimming pool? Coz im staying in Karsiyaka I was thinking to find sth near Karsiyaka Carsi or Alaybey. But also sth close to BORNOVA metro or ALSANCAK metro might be ok in the end ;/ but KARSIYAKA would be amazing!

Would be also nice to go somewhere in a group and have some new international friends. I do speak turkish but GOSSSH I MISS SO BADLY ENGLISH talk and POLISH .. here in Turkey/

Already thx a lot for all the msgs that will come to this post and your help! I hope we can create some fintess group here for the internations ;)!

Cheers,
Ula :)