Hercules includes a week of practicals and lectures in a partner facility outside Grenoble.
Travel expenses to move from Grenoble to the facility, then back to Grenoble, are included in the fees. Accommodation and travel back and forth to the partner facility are organised by the school.
The list of partner facilities 
includes:
- ALBA synchrotron in Barcelona, Spain
- KIT Light Source in Karlsruhe, Germany
- Elettra and FERMI in Trieste, Italy
- Paul Scherrer Institute (PSI) in Villigen, Switzerland
- DESY synchrotron and European X-FEL in Hamburg, Germany
- SOLEIL synchrotron in Paris, France