Thanks, Andrew. Unfortunately I didn't think enough about the itinerary and one of our days in CK is a Monday. No open castles! And unlike you, I prefer to go inside. Might have a sleep-late-and-poke-around day.

Jindrichuv Hradec as a town itself is worth a visit just to explore the town in my opinion. Then again, it might make more sense to do what I did and stop for a few hours on the way from Telc to Cesky Krumlov, not backtrack to see it.

Will you want to go rafting in Cesky Krumlov? (Will you be there in warm weather?) Maybe Monday is a good day for that.

There is a big park an hour or so drive from Cesky Krumlov as well if that interests you, if you need something else to do on that Monday (I didn't see the park, can't speak of it).