This workshop , to be held at Orsay between May 22 and May 25, 2018, is organised by the LHC Electroweak Working Group and PSI2 (Paris-Saclay International programs for Physical Sciences and their Interfaces).
The main workshop will take place on May 23 and May 24 afternoon and on the whole May 25. May 22 afternoon is reserved for satellite meetings, for example collaboration meetings.
On the mornings of May 22 to May 24, a course by Frank Krauss on « simulations for high energy physics » is organised.
A strike by train drivers will occur in France on May 23 and May 24 ,
https://www.lci.fr/societe/calendrier-sncf-greve-reconductible-avril-mai-juin-2018-planning-dates-previsions-trafic-tgv-ter-rer-transiliens-trafic-ponts-de-mai-vendredi-4-mai-2081815.html
You should therefore take a margin in your travels.
Lunches and the social dinner will be paid by the workshop. The social dinner will be on thursday may 24th at 20:30 at the Loubnane restaurant – 29 Rue Galande, 75005 Paris (https://www.loubnane.fr/)