My younger son and I hiked St Sauveur Mountain and Valley Peak this morning. We had never done this hike before and amazingly (for Acadia) we didn't see any other people until we were 3/4 of the way through our hike.
This is a fun 2.8 mile hike, steep at parts and requiring some light scrambling but overall we rated it as a moderate hike. There were a few obstructed views from the top of St Sauveur and amazing views of Somes Sound from the Valley Peak trail.
Here is a map of our hike.