For The Love Of Port

Carcavelos has come up a few times around here in reference to an article from the LA Times, or some wine blogger writing about it. I was considering trying to make a trip, but with such a small operation, I'm thinking I can't just take a tram to the winery and hope for a tour and tasting. Has anyone been there, visited the winery(ies?), etc. Does anyone have contact information?

I did find one possible option:
http://portugalmyxperiences.com/en/holi ... arcavelos/
But I'd like to find out what other options might be available.