Boating & Water Access in Old Lyme, CT
Old Lyme sits in New London County at the mouth of the Connecticut River, right where it meets Long Island Sound. The Lieutenant River runs parallel to Lyme Street before joining the Connecticut River near its mouth, giving the historic village center its own tidal waterway alongside the bigger river. The town covers roughly 28.8 square miles (75 km²), of which about 5.7 square miles is water, and its southern section is flat, laced with tidal marshes that shape how the shoreline is actually used. Boating and water access here splits into a few genuinely distinct pieces: working marinas on the Connecticut River, a federally designated estuarine reserve at the river's mouth, a freshwater lake shared with neighboring Lyme, a documented Einstein sailing anecdote from the 1930s, and a string of private beach associations along the Sound. This page covers what is actually confirmed about each, without inventing slip counts, fees, or flood-zone designations that were not confirmed.
Connecticut River Marinas & the Harbor Management Commission
Old Lyme Marina and River Landing Marina are real, currently operating marinas on the Connecticut River side of town, giving boaters direct access to the river and, beyond it, Long Island Sound. The town also maintains its own Harbor Management Commission, reflecting an active, locally governed approach to how the Connecticut River waterfront is managed within Old Lyme.
This page does not have a confirmed slip count, current dockage or mooring fee, or a specific marina capacity figure for either marina -- none of that was confirmed in this site's research, and none of it is invented here. Anyone evaluating boating access tied to either marina should confirm current services, slip availability, and fees directly with Old Lyme Marina, River Landing Marina, or the Old Lyme Harbor Management Commission.
Great Island, Griswold Point & Connecticut's First National Estuarine Research Reserve
Great Island and Griswold Point, at the Connecticut River's mouth, are part of Connecticut's first National Estuarine Research Reserve -- a 52,000-acre, multi-town designation made January 14, 2022, per the Connecticut Audubon Society. The reserve specifically includes the Roger Tory Peterson Natural Area Preserve within Old Lyme, along with the Lord Cove Natural Area Preserve and other named sites across the lower Connecticut and Thames River region.
The designation carries up to $1 million annually in federal funding for climate-resilience, water-quality, and habitat research. The reserve area supports more than 200 bird species, with nearly 25% of them state-listed under Connecticut's Endangered Species Act -- making this stretch of river mouth a genuinely significant ecological anchor for anyone boating or paddling through it, not just a scenic backdrop.
Rogers Lake: A Freshwater Alternative to the Sound
Rogers Lake is a 265-surface-acre freshwater lake straddling the Old Lyme/Lyme town line, fed by a 4,833-acre watershed and dotted with five small islands. It is stocked annually with brook and rainbow trout, making it a real freshwater boating and fishing alternative to Long Island Sound access for residents and visitors who want calmer water than the river mouth or open Sound offer.
Local folklore describes a lake monster nicknamed "Roger," with one source claiming more than 200 sightings since 1878. That is legend and folklore only, not verified natural history -- there is no documented biological evidence behind it, and it is worth knowing purely as a piece of local color rather than a fact about the lake itself.
Einstein's Summer of Sailing: 1935 on the Lieutenant River
Albert Einstein rented the "White House" in Tantummaheag for the summer of 1935, from June through September. During that stay he reportedly rented an 18-foot Cape Cod Knockabout sailboat from Essex Boat Works -- and, per the historical record, ran the boat aground multiple times.
It is a small, charming, well-documented piece of Old Lyme's boating history: one of the twentieth century's most famous minds, spending a summer on the local water with more enthusiasm than nautical precision.
Private Beach Associations: Direct Sound Access, Separately Governed
Old Lyme's shoreline includes several private beach associations that provide direct Long Island Sound beach and water access: Sound View Beach, Old Colony Beach, Miami Beach, Old Lyme Shores, White Sands Beach, Point O'Woods, and Hawks Nest Beach.
Each of these is a separate, quasi-municipal governance entity, responsible for its own local infrastructure. That means water access, amenities, and rules can vary meaningfully from one association to the next -- there is no single, townwide standard for what a given beach offers, and anyone interested in a specific association's access or amenities should confirm directly with that association.
What This Page Does Not Claim
This page does not state a current slip count, dockage or mooring fee, or capacity figure for Old Lyme Marina or River Landing Marina, and does not state a FEMA flood-zone designation for any Old Lyme neighborhood -- none of that was confirmed, and none of it is invented here. The Rogers Lake monster legend is presented strictly as folklore, not as verified natural history. Before making any boating, water-access, or property decision in this market, confirm current marina services, fees, slip availability, and flood-zone status directly with Old Lyme Marina, River Landing Marina, the Old Lyme Harbor Management Commission, the relevant beach association, or the Town of Old Lyme.
Ready to talk to a local Old Lyme agent?
Get a Free Agent Referral →Independent research. No ads. No sponsored listings. Old Lyme's geography -- sitting in New London County at the mouth of the Connecticut River where it meets Long Island Sound, with the Lieutenant River running parallel to Lyme Street before joining the Connecticut River near its mouth, a total area of roughly 28.8 square miles (75 km²) of which about 5.7 square miles is water, and a flat southern section laced with tidal marshes -- is documented via Wikipedia's Old Lyme article. Old Lyme Marina and River Landing Marina are documented as real, currently operating marinas on the Connecticut River side of town; no slip count, fee, or capacity figure was confirmed and none is stated here. The town's Harbor Management Commission is documented as an active local body. The National Estuarine Research Reserve designation covering Great Island and Griswold Point -- its 52,000-acre, multi-town scope, its January 14, 2022 designation date, its inclusion of the Roger Tory Peterson Natural Area Preserve within Old Lyme and the Lord Cove Natural Area Preserve, its up to $1 million in annual federal funding for climate-resilience, water-quality, and habitat research, and its support for 200+ bird species with nearly 25% state-listed under Connecticut's Endangered Species Act -- is documented via the Connecticut Audubon Society. Rogers Lake's 265 surface acres, its position straddling the Old Lyme/Lyme town line, its 4,833-acre watershed, its five small islands, and its annual stocking with brook and rainbow trout are documented via public records; the "Roger" lake-monster legend, including the claimed 200+ sightings since 1878, is presented strictly as folklore, not verified natural history. Albert Einstein's 1935 summer (June-September) at the "White House" in Tantummaheag, and his reported rental of an 18-foot Cape Cod Knockabout sailboat from Essex Boat Works that he ran aground multiple times, are documented via local historical accounts. The private beach associations of Sound View Beach, Old Colony Beach, Miami Beach, Old Lyme Shores, White Sands Beach, Point O'Woods, and Hawks Nest Beach are documented as separate, quasi-municipal governance entities each responsible for its own local infrastructure. This page does not state, and does not invent, a current slip count, dockage or mooring fee, or capacity figure for either marina, or a FEMA flood-zone designation for any neighborhood. Nothing on this page is legal, financial, or navigational advice. For current marina services, fees, slip availability, and flood-zone status, contact Old Lyme Marina, River Landing Marina, the Old Lyme Harbor Management Commission, the relevant beach association, or the Town of Old Lyme directly.