Connecting Meerdael Forest to the Sonian Forest. There I rode part of the Nero route in the opposite direction . Overijse Hoeilaart connecting to the Overijse Bloso routes which I followed for a while until I left them near Sint Agatha Rode to ride back to Meerdael Forest again.
Ride is not too difficult, I avoided the really muddy trails on the Nero route but of course you are free to include them .