Kickboxing and Yoga (Istanbul)

Hi,

I need to get back into kickboxing/ MMA (Mixed Martial Arts) and I wonder if you guys know of anywhere near Taksim where I live. I am also hoping to find a Yoga school/club so I would be grateful if you could help me.

Also, does Istanbul have any indoor climbing centers? If said really love to get introduced to them and possibly meet some fellow climbers.

Thanks.