Cocktail attire, wear sensible shoes as the ceremony will be outdoors in the woods and grassy areas, uneven ground. The reception will be indoors. Bring a jacket for later and if you intend to camp bring whatever you will need to stay warm in late winter/early spring in Ojai. Check the weather before the event and dress accordingly.
Secure parking available at the site, there is no parking on the campground area, although you may load and unload a vehicle on the campground.