Caves in Maine

Maine's geology — hard metamorphic and igneous rock — produces almost no karst. Anemone Cave at Acadia National Park is a sea cave carved by Atlantic waves into granite coastline, accessible at low tide. The limestone pockets in Somerset and Knox counties have localized karst features but nothing approaching a significant cave system. For cave experiences, Maine visitors head to the White Mountains of New Hampshire or the Appalachian karst country further south.

Every cave listed here is on public or accessible land. Always bring three light sources, water, and let someone know your plans before entering any undeveloped cave. Temperature inside: typically 50–62°F year-round. Explore all caves on the Trek4Free map →