Brick wall opportunity! As Lynda said, it would help to know where you are going.
In general, focus on finding things you can't get at home. Meet living relatives, the older the better. Visit cemeteries, churches, schools, old family homes. Go to the places that have records not available online: county courthouses, local genealogical societies, etc. It helps to have specific ancestors you want to research, and specific information to seek. Ten days is not a lot of time, especially if you don't want to spend all of it in cemeteries and libraries. Have fun!