Hello! We recently had to cancel our very fantastic beach vacation idea because we found out we're having twins in July/August of this year and we need to conserve money. SO, we are looking for somewhere we can go with our other two kids (ages 1 and almost 4) that is within driving distance--about 4 or 5 hours--of Northern Virginia and won't require me walking around too too much to enjoy, but also have some fun things for the kiddies to do. Tall order?! Was looking at Mountain Lake if anyone has been. Thanks in advance!