In July of this year, visited Krumlov on the way to Munich. We stayed there a couple of days and were very satisfied. Krumlov castle is the second of largest castles in the Czech Republic. The old town is surrounded by the river, so to get more pleasure you can rent a canoe and see all the sights along the river riding. This is a very popular entertainment for tourists, so on the river can be seen floating cocktail bars or you can just buy a drink from the locals on the boats. You can meet a lot of camps, large and small. Many canoe rental firms located in the city center and usually last departure at 8 pm. Choose rental must be carefully, some do not even give life jackets. We chose canoe for 2 people 600 CZK (25euro) from rafting & kayaking MALECIK phone 420 602 744 074, friendly owner, selection of a few routes of different length. Stayed at the pension VYHLIDKA Zdenek Pysik, Do vrchu 370, not luxury but clean and very good owner. There is parking and delicious breakfast:) you can find more on booking.com

To visit Cesky Krumlov and its one of the largest castles in the world, we have allocated the whole day, and were not disappointed! Walk through a huge castle was rewarded with many kilometers is not only very beautiful views of the city and the river from the castle walls, but ended with a very nice park with fountains, where you can rest with pleasure

I love this kind of cities which are small, local, traditional and beautiful. You can understand what the word "medieval" really means.
It's definitely worth staying for a few days if you visit Czech Republic.