I've booked a long weekend to Kraków for early next year. I'm definitely wanting to do an Auschwitz tour which includes Birkenau. Which is the best website to prebook this? I don't want to risk not having availability by booking whilst there.
Are there any tour providers that offer more than the others?
Are there any other recommendations of things to do whilst there? I've heard the salt mines are pretty impressive. Ive also heard the Jewish Quarter didn't have a lot to see.
Finally, I was thinking of taking £150 worth of Zloty. Will this be enough for lunch and evening meals for 4 days with a little spending money? Not wanting to exchange too much as it's not like the euro where I can put it towards other European holidays?