FATMAP difficulty grade
The run follows the prominent Ridgeline of Mt Lamiri, the highest mountain on Atauro Island.
We think it's probably only possible in the dry season. You'll need to get a boat to the small beach about 800m to the West of the ridge (Point Aromauco).
From there, follow the water pipe up the first rock band and then gradually traverse to the ridge. There is no trail for riding or hiking.
The riding is made difficult by the small "baby head boulders" in many places.
In addition, the run crosses a number of volcanic rock bands, all of which are very difficult to ride at all.
Falling off the ledge is "not an option". We started at a little above 500m.
We assessed the riding above this was not great without a trials bike.
Beyond the tree line, it may be possible on foot but not on bike.