So this past Saturday we headed south from Castine in perfect weather. In 3 1/2 hours we dropped anchor near the northern shore of McGlathery Island and rowed ashore to a sandy beach for some dog play, then a hike across the island.
After a calm night at anchor, we did a much longer hike about 3/4 around the perimeter of the island. Then at mid-day we made a short run over to St. Helena Island for more exploring. We anchored near the NE tip of the island (where the nifty cairn was - see below) and had to bushwhack some before we found trails that lead to an old abandoned granite quarry.
By 3 pm we were pulling anchor for the return to Castine. This is a great area to visit and we will definitely be returning.