My dd (age 10) and I have been invited to Baltimore for a few days in the summer. I want to make the most of it if we do go and stay for a couple of weeks. I want to keep the cost to a minimum so will probably stay in the same area (rather than flying to another part of the states to see other friends), but am now looking for ideas of things to do. We both enjoy being active and outdoors. Can anyone recommend anything/anywhere? I've never arranged a holiday abroad unless it's staying with friends/family or an all inclusive beach resort!