My FI and I are planning a wedding for September. We are having a morning (10am) ceremony immediately followed by a brunch reception. Our reception is only three hours and we feel we will want to spend more time with our guests (the biggest complaint I've heard at weddings is: "we came all this way and barely got to see the bride and groom").
My parents graciously offered to host an after party for us. Nothing crazy just getting together in their back yard (which is huge and can accommodate everyone) and grilling some burgers/hot dogs as well as having a few kegs of beer and some soda and water. This way we can take off the fancy clothes and just spend time with the people who would like to spend more time with us.
We want to keep it very casual, so we figured we would put the information up on the wedding website (which most people will see because we are doing online RSVPs) and spread info by word of mouth. We will also include information in the hotel room welcome bags.
How should I word this section of the website? I want to invite people, but I don't want them to feel forced to come if they need to get on the road quickly. Also, is it ok to mention that this will be much more casual than the wedding so that people don't show up in their wedding clothes when we have changed to a sundress for me and khaki pants for him?