How to find the Scout Institute/Skautský institut.The Institute is in the Old Town Square within the building called the Creative Centrum. https://www.skautskyinstitut.cz/staromak/
Map
https://bit.ly/
To get in you need to find the entrance under the arches opposite the Hotel Prince/Black Angel Bar.
The bar is up the stairs then on the left on the first floor where there are also a number of meeting and function rooms.
