From the Promoter:
Poroma.cc promotes a gravel cycling event on the 12th and 13th of October in Caramulo, Portugal. This is one of the most natural and quietest regions of Portugal. Relax and enjoy the region and culture.
The route isn’t available at the time of writing, but it will be made up of gravel and “light” trails, national roads and a couple of less well-surfaced bridleways.
You can use any bike you like, road bike, mountain bike but we recommend a gravel or cyclocross bike.
Remember, there are no “winners” here, but there will be time and route control in order to maintain the safety of the participants and to help find all the “finishers”.