San Carlos, Sonora. Just a bit south of Hermosillo, next to Guaymas. It's about 400 miles on the nose from my driveway to the marina. To fly in you'd have to go to Hermosillo as I don't know if any of the commercial airlines are flying into Guaymas these days. It's not a bad drive and there are lots of good little places to eat on the way down and back.