Large High Altitude Air Shower Observatory (LHAASO), One of the world's largest and most sensitive cosmic-ray facilities, located about 4,410 meters above sea level at Daocheng in southwest China’s Sichuan Province, has its first part almost ready to be turned on for scientific operation in March, 2019. It includes a 22,250 square-meter water Cherenkov detector with a threshold energy of about 300 GeV which is sensitive to gamma ray sources brighter than 0.03 Crab-Unit, about an 14,000 square-meter scintillator counter array equipped with a muon detector array with an active area of about 2,000 square-meter which is sensitive to high energy gamma rays above 10 TeV and a couple of Cherenkov telescopes equipped with SiPM camera with pixels of a half degree. Even at the current stage, the LHAASO experiment will play a significant role in the multi-messenger exploring of our universe, for instance the search for counterparts of ultra-high energy neutrinos detected by IceCube or high energy GRBs as reported recently by MAGIC.
The workshop on the very important topic of multi-messenger observation will be hold to celebrate the event at the site of LHAASO from 25 to 27 April, 2019. Onsite registration is avialable in the afternoon of 24 April. There will be two days workshop from 25 April at the nearest major city, Chengdu (500m a.s.l.) , that is also the home town of the newly established Cosmic Ray Research Center, and then a 45 minute commercial flight to take to visit the array on the morning of 27 April. It will take a day at Daocheng. That's the end of this visit until all the participants take flight to leave Daocheng next morning.
