Two schools have been developped with the support of Enigmass.

The first one is the European School in Instrumentation in Particle and Astroparticle Physics (ESIPAP). It is a unique school in the world, located close to CERN and offering Master, PhD students and early-career professionals two intensive 4-week courses taught by an international faculty comprising some 50 world-class experts from academia, research facilities and industry. More details ​here.
The second one is GrasPA. This summer school in Particles and Astroparticle Physics offers to L3 or M1 students one-week-long School with theoretical & experimental introductory courses on few topics: LHC physics, neutrinos, heavy flavours, astroparticles, gravitational waves, cosmology, computational tools as well as a CERN visit.