Starting to plan for a Portuguese Camino in September 24 from Porto and cannot decide whether to walk the central or coastal. I'd appreciate comments and suggestions from fellow pilgrims that have walked either. Really interested in understanding the level of support ie accommodation options, places of interest. Thank you.
This is a complicated question and you're going to get a lot of opinions on each side. Having walked the coastal twice and part of the Central once (Porto to Ponte de Lima), I can offer a few general comments:
1) From a pure walking point of view, the coastal is much easier, hands down. On the coast it's mostly flat while you do get some elevations on the Central. Also, some of the road walking is a bit hairy on the Central, from Porto up to about Mindelo.
2) In terms of historical towns, Central definitely has the edge, with Barcelos, Ponte de Lima and Valença. Ponte de Lima earns my vote for most charming town in northern Portugal; we spent several days there to enjoy some local festivals. There's also the 12th century D. Zameiro bridge over the Rio Ave just south of Vila d'Arcos. Of course, you can find some interesting things on the Coastal as well, like the Celtic excavation site near A Guarda and the replica of Columbus' ship Pinta in Baiona harbour (you'll be amazed at how small it was). I also like the older waterfront parts of Vila do Conde and Viana do Costello; very scenic.
3) In terms of natural scenery, it's a bit of a toss-up. Do you prefer ocean or mountain views? Beach boardwalks or forested trails? This is purely a personal preference thing. My wife emphatically prefers the coast and I'm okay with either.
4) "Pilgrim ambience." I put that in quotes because it's kind of hard to pin down. But basically I mean that sense of being on a medieval-like pilgrimage, or quest. You might argue that the coastal is a bit weak in that because, frankly, you're walking through so many modern beach resort towns, particularly on the Portuguese side of the Minho. On the Central, we found we tended to bond more with fellow travelers, there was just more, well, pilgrim spirit. This is such an intangible thing that I don't want to make too much of it but there it is.
5) Accommodations are good on both, probably a bit more on the coastal because of all the beach resorts along the way but not a make-or-break issue.