Am considering a weekend trip to Maine -- would love to go on some rides with my spouse, who is new to roadie-dom. I know there are lots of carriage trails in Acadia Natl Park, but from my recollection, those would be more suited to a hybrid or mountain bike. Anyone out there know whether there are road loops that are light on traffic? I saw one site that mentions that the 20 mile Park Loop has very heavy traffic, so I was hoping there are other options. Thanks!