WHAT TO WEAR
The Beltane Ranch is a pretty low key place.  Maybe dress a little nicer than if you were, say, going for a jog.  Perhaps "dress casual" is the right phrase, though we can't say we know what that actually means.  We're sure you'll look great.  For the ladies, stiletto heels are probably a bad idea, unless you want to spend the afternoon aerating the lawn. 

A NOTE ABOUT THE WEATHER
The wedding will start in the late afternoon and will go into the evening. The entire event will be outdoors. Although it will be quite hot during the day, the temperature can drop by as much as 40 degrees Fahrenheit once the sun goes down.  You'll be happy to have sun protection for the afternoon and a warm layer for the evening. Click here to see Glen Ellen's average temperatures.