I just saw a FB post for a friend's wedding. The post states that their invitations will be post cards that will go out next week but since people keep asking, they're just posting their wedding website to FB for people to go to RSVP now. On the website, they say it's a "backyard wedding" on a 10 acre property owned by family. There is "primitive camping" on sight. No mention of restrooms anywhere and I have a lack of hope if its "primitive camping." Dress code is semi-formal because "even though this is a backyard affair, it'll still be classy." I'm going to be upset about peeing in the woods with a dress on. I have to assume since she posted about the wedding website on FB and tagged her FH that all 600+ of their friends are invited or they'll have some awkward conversations. I doubt a house restroom can handle even 100 people. The wedding is at 5, dinner at 6 and there is no end time. How do I politely inquire about restroom facilities?