I belong to a cavalier meet up in my area and have been to 2 events so far its so much fun!!!! I have to drive about an hour but Fletcher loves the car and I don't mind. Next one I'm going to take Mr. Monster aka my 4 yr old son. There are about 15 active members most have more than one cavalier. Everyone is really nice too.
Oh yeah since looking for a cavalier more than a year ago I have only seen 2 out walking. One in my neighborhood, a tri named Max and we met one walking one morning on vacation when we were at the beach. Cavaliers are not too common in my area either.