From the facebook group:
We are looking for some volunteers to lend a hand during the organization of the Borders of Belgium. This is a 1000 km bike ride which will be held from Thursday 6 september to Sunday 9 september 2018. People who got some free time for 1 or 2 days at one of the two control sites to help.
One control is in the province of Luxembourg; the other control is in the South of West Flanders or the North of Limburg.
The main tasks at the checkpoints are helping in the kitchen at supper and breakfast (you don’t have to be a gourmet chef; we already have excellent cooks), show the participants their sleeping place and handing out bagdrops.
There is a compensation for the travel costs in Belgium.
More info via: bordersofbelgium@gmail.com
Thanks!
(I remember being very confused by this "province of Luxembourg" business
! )