We've pre-assigned everyone not staying in Portland or in a private home to either the Black Point Inn and the Higgins Beach Inn. We'll let you know in advance and you'll just need to call them to provide your details.
Flying or driving are both great options. If you are flying, BPI is about 20 minutes from the Portland Jetport and 2 hours from Boston Logan Airport. If you are driving, BPI is about 5.5 hours from NYC and 2 hours from Boston. If you plan to stay in the area before or after the wedding, we'd recommend having your own car.
It's about a 5-minute drive to BPI from Higgins Beach Inn. Ubers are readily available (although we recommend scheduling ahead), but we'll also have a shuttle running between the two inns on Saturday before the ceremony and after the reception.