The Pine Tree State GeoArt series will take you on a short trip not far from Stratton. The road is passable by most cars, but bikes and e-bikes are fine too. There is also about a mile or so of walking. Each cache will highlight something interesting about Maine.
Maine Sea Caves
Sandstone sea caves and erosional sea caves are found in several places along the Maine coast. The sandstone sea caves are in the downeast region just north of Eastport near Robinson. While the erosional sea caves are found in the granite that makes up much of the Maine coast line. These caves include such caves as Day Mountain Cave, Blowing Cave* and Gulliver's Hole*. The caving sea kayaker has a number places to find small sea caves on the many islands and in the rocky coves along the Maine coast.
Source: http://www.bostongrotto.org/Grotto/hendrickson/maine.html
If Maine has sea caves, the cache is at: N 45° 11.117′ W 70° 22.149′
If Maine does not have caves, the cache is at: N 45° 11.159′ W 70° 22.159′