So I have just chosen the perfect venue. It has the best of every world. The 300 person pavilion has a river on one side and is wooded on the other. We're going to have the ceremony on a beautiful bridge that leads into the woods. Unfortunately, there is not an indoor option. The pavilion is covered, so I wasn't going to worry about renting a tent and it's not in my budget to also pay for a second just-in-case location. Would it be alright to include an extra note with my invitations that says, "This will be an outdoor wedding, rain or shine, so bring an umbrella just in case!" and provide a few extra umbrellas?