Hi,
@CaminoDeSunflowers, Welcome to the forum! There is a big group of Invierno aficionados here, so you will get lots of information about this route, either by searching through the subforum or asking questions here.
Did anyone find there were long stretches where there wasn't anyone around and no cell coverage?
There really aren’t any remote sections on the Invierno. You are always pretty close to “civilization.” The one exception might be the walk up to Monte Faro, which is a local pilgrimage destination in its own right but on weekedays and off-season, you are unlikely to see others up there. But it is totally accessible, all on wide tracks, and then along the windfarm ridge, again, not likely to see people, but not remote.
In an emergency, I would call 112 and not alertcops. If your particular cell phone carrier should happen not to have service in the spot you call from, the 112 call searches for any available mobile carrier to connect you. Having said that, though, I have used both Vodafone and Movistar on the Invierno and don’t remember ever finding that I had no service.
I’ve walked this route three times, usually alone, and never felt anxious or uncomfortable in terms of personal safety. But I have seen a total of 2 other pilgrims on my three walks, so it’s not exactly crowded. Based on what I hear, though, there is definitely an uptick in pilgrims. This is due no doubt to
Brierley’s guide and the huge amount of cash the Xunta has poured into this route. I bet you will find others walking.
Buen camino, Laurie