In those situations, you have a choice. You can be frustrated and disappointed or you can embrace the sudden change in plans and turn it into an adventure. By myself, I might go with the former, but with a van full of awesome teens, it has to become adventure.
We explored the harbor, skipped rocks, caught (and ate) crawfish, sang songs, danced on the bridge, and ate ice cream. Then the kids sat and watched a beautiful sunset while I shared a little message with them from the book of Numbers, about the 2 spies who weren't afraid to go into the Promised Land like God asked. I reminded them why those spies were different - in Deuteronomy, we are told that unlike everyone else, they actually spent time in God's presence. That's the way to be courageous when others are cowards and to do great things when others lead monotonous lives. Spend time with Him, trust Him, and follow Him.
Eventually, Dave came to rescue us with a fresh van. What a hero!