Scuba Diving in New Hampshire, United States

6 mapped sites

Destination guide

Scuba diving in New Hampshire, United States

New Hampshire, United States has 6 public dive sites on PickADive. Use the list below to compare mapped sites by depth, access, difficulty, ratings, and reviews before opening a site page.

Open map view Check condition context

Public sites: 6; Indexed destination pages
Reviews: 0; Catalog review count
Rating: Building; Reviews are still growing
Common access: Shore; 4 dive sites

Seasonal patterns

Best months, historically in New Hampshire, United States

Typical conditions by month across dive sites in New Hampshire, United States— historical patterns, not a forecast.

Jan63%6°C
Feb57%4°C
Mar53%4°C
Apr69%6°C
May77%11°C
Jun90%15°C
Jul92%17°C
Aug90%18°C
Sep85%18°C
Oct74%14°C
Nov65%11°C
Dec60%8°C

From 6 sites’ typical conditions · historical typicals, not a forecast

Best time to dive New Hampshire, United States: full month-by-month data →

Best dive sites in New Hampshire, United States

Showing 1–6 of 6

Dublin Lake

New Hampshire · 0–30.5 m

A clear 240-acre glacial lake at about 1,480 feet elevation beneath Mount Monadnock, popular with regional divers and training classes. Shore access points along the northeastern shore off Route 101 lead to a bottom that slopes steeply to about 60 feet past glacial boulder fields before flattening into silt that reaches 90-110 feet. Visibility averages over 30 feet, unusually good for a New England lake; altitude diving procedures apply.

IntermediateShore entry

Fort Constitution / UNH Pier

New Hampshire · —

A muck-and-critter dive beneath and beside the UNH 325-foot marine research pier at Fort Point, New Castle, next to the historic Fort Constitution. Strong Piscataqua River currents make this strictly a slack-tide dive; the silty bottom hides invertebrate life and old artifacts such as antique ceramic pipes. Best done at high slack after an incoming tide with someone who knows the site.

AdvancedShore entry

Fort Stark

New Hampshire · 4.6–7.6 m

A historic coastal defense site on the southeast corner of New Castle Island at the mouth of the Piscataqua River, now a state historic site with a sheltered cobble beach entry. The bottom is small boulders with kelp and rockweed giving way to eelgrass in 15-25 feet of water, with little current, making it one of the friendliest novice ocean dives on New Hampshire's short coast.

Shore entry

Isles of Shoals

New Hampshire · —

A cluster of rocky islands about six miles off the NH/ME coast, straddling the state line, that is the premier boat-diving destination for New Hampshire charters. Sites around Star, White, Lunging and Smuttynose Islands offer kelp-covered ledges, boulder fields and walls with abundant lobster, fish life and frequent harbor seal encounters, in some of the clearest water in the region.

IntermediateBoat entry

Lady of the Lake (wreck), Lake Winnipesaukee

New Hampshire · 4.6–9.1 m

A 125-foot wooden sidewheel steamer built in 1848-49 that sank in 1895 while under tow to be scuttled, settling upright in about 30 feet of water in Smith Cove (Glendale Cove), Gilford, in front of the NH Marine Patrol headquarters. The hull remains largely intact and is the most popular wreck dive in Lake Winnipesaukee, typically reached by a short boat run or kayak; small dive boats can tie directly to the wreck.

Boat entry

McKinney Park / Clark Point, Lake Winnipesaukee

New Hampshire · 3–32 m

The best-known shore dive on Lake Winnipesaukee, entered from the small town McKinney Park at the end of Clark Road in Wolfeboro. A shallow rocky training area gives way to huge boulder formations around 30 feet, and at about 45 feet a freshwater wall drops to 90 feet with a maximum depth around 105 feet and a small cavern at its base. Coarse sand keeps visibility up to about 25 feet on good days.

IntermediateShore entry

Plan a dive in New Hampshire, United States

Compare nearby sites

New Hampshire has 6 public dive sites in the PickADive catalog. Start with the map when coastline, nearby alternatives, and travel distance matter.

Explore sites on the map

Match depth and difficulty

Current public data shows 3 intermediate and 1 advanced dive sites. Listed depths range from about 0m to 32m where available. Shore is the most common listed access type. Use those signals as a starting point, then confirm the plan against training, equipment, and current local guidance.

Check conditions close to the dive

PickADive can help with research and comparison, but it does not certify that a dive is safe today. Weather, current, visibility, entry, boat traffic, and local rules can change quickly.

How condition context works

Common questions about diving in New Hampshire, United States

What are the best dive sites in New Hampshire, United States?

Use the ranked list on this page to compare 6 public dive sites in New Hampshire. PickADive highlights ratings, reviews, depth, access type, difficulty, and mapped location so you can move from destination research to a specific site page. 4 dive sites are recorded with shore access and 2 with boat access.

Are there advanced dives in New Hampshire?

Yes. PickADive currently marks 1 dive site in New Hampshire as advanced or expert level. Listed depths in the catalog reach about 32m at the deepest sites, and 2 dive sites are recorded as boat access. These dives deserve extra attention to depth, access, current, visibility, and local guidance.

What depths can I expect in New Hampshire?

Listed PickADive depth data for New Hampshire ranges from about 0m to 32m. Both shallow shore entries and deeper boat sites appear in the catalog: 4 dive sites are recorded with shore access and 2 with boat access. Use that as a research starting point, then verify current conditions and site-specific guidance.

Can I see New Hampshire dive sites on a map?

Yes. Use the map link on this page to compare New Hampshire dive sites by location, coastline, nearby alternatives, and individual site details.