...then you can pick an hour, excursion type and English option freely, as the latter in particular is not available all the time. Less touristy than Wieliczka. 4 hrs (boat) option is probably a way to go, provided your children are 4+. Children had a thrilling (original) lift experience, fun mine train experience and they did not get bored during the tour itself, when adults absorbed their knowledge. When the adults explored a unique chapel, the children were hunting for trains coming... through it. And finally, when adults enjoyed their coffee (in our case it was 25 mins stay), the children played ball in the underground gym. Highly recommended.