The Great Pond Mountain Conservation Trust holds conservation easements on six islands in the south end of Phillips Lake (see http://www.greatpondtrust.org/barrett-king-easement). My younger son and I explored the islands by kayak today.
We put in at the public boat ramp at the end of Poplar Road. From there it was a quick paddle to the islands. In addition to seeing a number of other kayakers, we also observed bald eagles and numerous fish in the extremely clear water.
Here is a map of our trip.