Yoga? Transit? Elementary? (Bremen)

Guten Tag!
My family and I are just moving here and I am wondering some things that I was hoping I could get your opinions on. TIA!

-What is your favorite yoga studio?
I am certified to teach in the US and am looking to teach Protected content a week, a vinyasa class, and attend occasionally.

-Is there some sort of monthly pass for families to ride public transportation? I can't seem to find any information on this.

-Our children are signed up to start at the international school, ISB, on Monday. Are there any parents here who have children there? Opinions on the school?