For anyone thinking of doing this lovely walk, I'm pleased to say that the last 50 metres or so are now much easier as a stone and cement path has been created. For the past year or so the old path was diverted, and you had to clamber down a bare earth path which was quite difficult in certain conditions.
I walked down from Eira today and although the weather was a bit drizzly we were rewarded with some beautiful rainbows. More good news is that the restaurant opposite the bus stop - Sabores do Curral - which was demolished after a gas explosion, has been rebuilt and is now open again. It's closed Mondays so didn't eat there today, but the building looks really nice with several terraces and is, I think, a good use of EU and other grant money.