We found Sonoma to be VERY relaxed. In fact we were a bit concerned on our 1st visit to "wine country" in that we're not educated on wine even though we like it, maybe too much. We were concerned that we would feel out of place by not being able to describe what we were tasting, smelling, etc. Every winery we visited like Dry Creek, Coppola, Martin Ray, St. Francis, Kunde, et all told us that all that mattered was if we liked a wine. They would then tell us what me "might" be tasting as far as the "notes".

So very relaxed we've gone back four years in a row and stayed in Santa Rosa which we love. Santa Rosa also has several excellent restaurants in the historic district. So since the original question was for places of interest, fun things, good restaurants and not just wine, hopefully that gives you some options to consider.