Anello del lago di Ridracoli

Done, trekking on foot, Orux elevation profile on Nexus 4. Some sections are feasible on MTB.

Signage is disorganized for the first 3/4 of the loop, with very old signs. Without a good GPS and a good track, it's easy to get lost. You need to bring plenty of water. Don’t underestimate the hiking time, which in my case was 8 hours (with meal, photos, video recordings, and also orientation breaks).

If you want to shorten the loop, in summer it's possible to use the minibus to reach the dam from the ticket area.

Some issues:

Fosso degli Altari: the trail starts after the ford (there’s a stone on the ground with an old red sign indicating a turn, the start should be not far away. Having followed a bit of the stream, to return to the trail I traversed off 'track').

Fosso della Lama: if there’s a lot of water in the dam (winter/spring), following the dotted path on OCM is not possible: you need to go up the stream and try to regain the CAI235 further upstream.