Yes! We suggest that if you are bringing your kids to rent one of the cabins or the motel as it will be a better set up for you and your family.
There is no transportation to the ceremony which makes staying at the lodge the ideal choice.
If your invitation says “and Guest,” then yes, if not, just you.
Semi-formal, please. But we want you to feel comfortable, so if those shoes are too high or that top button is too tight, let it all hang loose.