This is a driving tour of ten .jpeg caches. There is no need to leave your car for the entire tour, including the final cache location. To find it, you will need to observe a number in the vicinity of each of the listed caches and use them to solve for the final coordinates. That's it.
It could come in handy when the weather's not so great.
Or it could be good for at least 11 smileys if you stop and find each one.