As stated by others, there isn't much to do or see in Holasovice apart from walking once around the fish pond. It's listed as a typical example for a peasant village of the time. And I think it's a fine choice.

Getting There

I was travelling in winter and wasn't able to figure out when a bus would run. I also had limited time, so I got a cab (fixed price) to take me from Cesky Budejovice to Cesky Krumlov via Holasovice. Price was very reasonable. Scenery was great with snow everywhere. And even though I don't speak Czech me and my cab driver had quite some fun on the road. Very nice memory.

While You Are There

The closest WHS is Cesky Krumlov. As stated this can be combined into a day trip.

Cesky Budejovice is quite nice. Drinking a REAL Budweis beer in the REAL Budweis brewery a great treat.