Check out the descriptions on the Travel page "what to pack" and the schedule of events has a suggested dress code for every event.
BRING THEM! Every single thing this weekend is dog friendly from the accommodations, to meals, activities and even the wedding and reception! The only problem is matching their outfits to yours.
You coming out to Mendocino is the best gift for us. We know its a long drive, trust us its sooooo worth it!