CALIFORNIA, Md. — You don’t have to travel to Florida to see dolphins—or even the occasional manatee. Every summer, these surprising marine visitors make their way into Maryland’s Chesapeake Bay, leaving boaters, anglers and waterfront residents wondering how they got here.
Their appearance is more than a rare wildlife encounter. According to the Maryland Department of Natural Resources, dolphins, manatees, sea turtles, whales and other marine animals regularly visit the Chesapeake Bay and its tidal tributaries during warmer months. Here’s why they come, where you’re most likely to spot them and what you should do if you’re lucky enough to see one.
Why Dolphins Visit Maryland Waters
Dolphins are the more common summer visitors. As water temperatures rise, some dolphins travel into the Chesapeake Bay while following food sources. The Bay offers areas where fish are plentiful, making it an attractive place for seasonal feeding. Maryland Department of Natural Resources officials have said dolphins may also be drawn to the Bay’s warmer summer waters because they tend to be free of the large predators that threaten young dolphins.
People may spot dolphins in different parts of the Bay, including areas near river mouths and along shorelines. Sightings can occur in waters bordering St. Mary’s, Calvert and Charles counties as well as farther north. According to DNR’s Marine Mammal and Sea Turtle Program, sightings north of the Bay Bridge do occur but are far less common than those farther south in Calvert, Dorchester, Somerset, St. Mary’s and Talbot counties, with the most frequent sightings along the Atlantic Coast near Ocean City and Assateague Island. Their movements vary from year to year depending on environmental conditions and the availability of prey.
Although dolphins are highly social animals and often travel in groups, the size of those groups can differ. Some observers may see only a few animals, while others may encounter larger pods moving together. Researchers with the University of Maryland Center for Environmental Science, which operates the Chesapeake DolphinWatch citizen-science program, have found that dolphin sightings are seasonally stratified across the Bay, with dolphins reported in the Lower Bay nearly year-round and July typically producing the highest number of reported sightings.
Why Manatees Sometimes Reach Maryland
Manatee sightings in Maryland are much less common than dolphin sightings, but they do happen from time to time during the warmest part of the year.
Manatees depend on warm water and generally live much farther south. During summer, however, an occasional individual may wander north along the Atlantic Coast and enter the Chesapeake Bay. These trips are unusual and typically involve single animals rather than groups. The Maryland Department of Natural Resources (DNR) considers West Indian manatees an out-of-habitat species in the state. Manatees are protected nationally under the Endangered Species Act and the Marine Mammal Protection Act, according to the U.S. Fish and Wildlife Service.
Because manatees are sensitive to cold temperatures, they cannot remain in Maryland after water temperatures decline. As cooler weather returns, they must head back toward warmer waters to survive.
Their rare appearances often generate excitement because many Maryland residents have never seen one outside of a zoo or while traveling farther south.
Where You Might See These Animals
There is no guaranteed place to find dolphins or manatees in Maryland, but warm-weather sightings are generally more likely in open Bay waters and connected tidal rivers.
Early morning and evening can provide calm water that makes wildlife easier to spot. Boaters sometimes notice fins or rolling animals at the surface, while people on fishing piers, beaches and waterfront parks may also catch a glimpse. In recent summers, The BayNet reported dolphin sightings in waterways including the Patuxent, Potomac, South, Severn, West and Magothy rivers, reflecting how widely the animals can range across the Bay’s tributaries.
Even when wildlife is nearby, patience is important. Dolphins surface briefly before diving again, and manatees can be difficult to distinguish from floating debris until they move.
Residents should also remember that wildlife sightings can change quickly. An area that produced several reports one week may have no activity the next. Maryland residents can track real-time sighting reports and submit their own through the Chesapeake DolphinWatch app and website, a research and citizen-science project developed by the University of Maryland Center for Environmental Science’s Chesapeake Biological Laboratory.
How To Watch Responsibly
Seeing marine wildlife is exciting, but giving animals plenty of space is one of the most important parts of responsible viewing.
Boaters should avoid chasing or surrounding dolphins or manatees. Maintaining a respectful distance reduces stress on the animals and lowers the risk of collisions. Sudden changes in speed or direction can interfere with natural behavior. State officials have specifically asked residents and visitors not to touch, feed, chase or approach dolphins or other marine wildlife they encounter on the water.
People should never attempt to feed, touch or swim with wild marine mammals. Human interaction can alter natural habits and create unnecessary risks for both people and wildlife.
If viewing from shore, binoculars or a camera with a zoom lens can provide a closer look without disturbing the animals.
A Seasonal Reminder Of The Bay’s Diversity
The Maryland Chesapeake Bay dolphins and manatees story is ultimately one of seasonal movement. Dolphins arrive more regularly during warm months as they follow food into the Bay, while the occasional manatee makes a much rarer journey north before returning to warmer waters.
Whether you are kayaking in Southern Maryland, fishing in Anne Arundel County or enjoying a waterfront park anywhere along the Chesapeake, keeping an eye on the water may reward you with an unforgettable glimpse of wildlife. Even brief sightings offer a reminder that Maryland’s largest estuary is part of a much larger coastal ecosystem where marine animals can travel remarkable distances throughout the year.
Frequently Asked Questions
Are dolphins common in the Chesapeake Bay? Dolphins are seasonal visitors and are seen most often during warmer months when they enter the Bay to feed. The Maryland Department of Natural Resources and the University of Maryland Center for Environmental Science’s Chesapeake DolphinWatch program both track sightings, which tend to peak in July.
Do manatees live in Maryland year-round? No. Manatees require warm water and only occasionally reach Maryland during summer before returning south as temperatures cool. DNR classifies the West Indian manatee as out-of-habitat in Maryland waters.
What should I do if I see a dolphin or manatee? Watch from a respectful distance, avoid approaching or feeding the animal and allow it to behave naturally. Report injured or distressed animals to the Maryland Natural Resources Police Hotline at 800-628-9944.
Can I see dolphins from shore in Maryland? Yes. While sightings are never guaranteed, dolphins can sometimes be seen from beaches, parks, fishing piers and other waterfront locations during the summer, and can also be reported and viewed through the Chesapeake DolphinWatch app.
Related Articles From The BayNet
- Manatee Spotted In Drum Point, Plus More Dolphin Sightings In Maryland’s Bay Waters
- Dolphins, Manatees and Sea Turtles Are Returning to The Chesapeake Bay For Summer – What DNR Wants You To Know
- Maryland Reminds Locals To Stay Alert For Marine Life As Dolphins Are Spotted Off Calvert County’s Shores
- Bottlenose Dolphins Spotted In Potomac River As Summer Sightings Begin
- Attention Watermen! Chesapeake’s Most Popular Summer Tourists Have Returned; Report Sightings For The Dolphin Watch Map
- Are Manatees Trying To Tell Us Something About The Chesapeake Bay?
- Maryland DNR Urges Public To Report Marine Mammal And Sea Turtle Sightings Or Strandings
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