This event is a very short walk from the Tenleytown Metro Station! Iona is an organization that works with senior citizens. For this particular event volunteers will help with final set up for the event, serving refreshments and assisting guest to take carry bags of the guides to their vehicles. The person I have been in contact with requires that volunteers are "neatly attired" so nothing formal but no sweats, or sneakers! Nice casual, if that makes sense. Let me know if you have any questions!