Luckily we didn't crash grandma and grandpa's vacation, we were actually invited up. BUT, inviting up our family (4 kids), plus my brother's family (4 kids), seems a little nuts, so it felt a bit like crashing a vacation!
My parents enjoy a timeshare (or something like it) at Stone.ridge. It's beautiful. And the kids had an absolute blast!
They did crafts!
And then we did another craft. AND went swimming! The kids were pooped but had a great time. Thanks for inviting us grandma and grandpa!