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Calvert Marine Museum Otters
Explore Calvert County, Maryland

175 Main St.
Prince Frederick, MD 20678
Ph: 410-535-4583
Fx: 410-535-4585

Discover amazing adventures and unspoiled beauty in Southern Maryland’s Calvert County. With abundant waterways and natural parks, unique shops and museums, excellent restaurants and a calendar filled with interesting events and activities, Calvert County is truly the “Charm of the Chesapeake."

What's New? - View All
Rockfish Season is Open on the Chesapeake Bay
The state’s spring rockfish season begins Saturday, April 18, and anglers are encouraged to set out for the Chesapeake Bay from the shores of Calvert County. Read on...
NEW 'On a Budget' Section Features Free and Nearly Free Things to Do
You do not need to spend a lot to have a great time in Calvert County. In many cases, you don't need to spend anything. Check out our list of free and nearly free things to do. Read on...