This year's competition takes place on Saturday 15 February in the Chilterns as usual for teams of 3,4 or 5.
There are 30 km, 50 km and 50 mile routes with up to 20 checkpoints, one of which is being manned by GLSW.
Further details are here on the GLN Southern 50 website.
The closing date for entries is 31st January.
Please encourage Units and Networks to enter. GLSW has a long history of participating in this event each year since at least 1984, and it comes highly recommended.
Let's do it again this year.