- The largest estuary in the United States
- Extends from the mouth of the Susquehanna River in the north to the mouth of the Potomac River in the south
- Contains over 15,000 islands and has a shoreline of over 11,600 miles
- Home to a variety of marine life, including crabs, oysters, and fish
- A popular destination for boating, fishing, and swimming
The Atlantic Ocean
- The second-largest ocean in the world
- Borders Maryland's eastern shore
- Home to a variety of marine life, including dolphins, whales, and sharks
- A popular destination for swimming, sunbathing, and surfing
The Potomac River
- Forms the border between Maryland and Virginia
- Flows into the Chesapeake Bay
- Home to a variety of marine life, including fish, crabs, and oysters
- A popular destination for boating, fishing, and swimming
The Susquehanna River
- The largest river in Maryland
- Flows into the Chesapeake Bay
- Home to a variety of marine life, including fish, crabs, and oysters
- A popular destination for boating, fishing, and swimming