Because of the coronavirus, the Polish government introduced nationwide special precautionary measures. From Friday the 13th until at least April 26 all institutions, cultural venues like cinemas, museums and theatres, across all of Poland. So all Kraków's tourist attractions and cultural institutions will be closed until at least April 26. Read more about coronavirus in Krakow
Yes, there are several bus companies that shuttle between Krakow and Auschwitz. The ride takes about 1,5 hours and the ticket price is up to 15 PLN. You can also go by train to Oswiecim, it takes 2 h and costs around 20 PLN. There are also many companies providing private tours with a guide. The price varies depending on the company and the ride takes around 1h 10 min.