
Massachusetts
Tonight
🌗 46% moon
6 h fully dark
Crowds
low
Open today
Open
Boston Harbor Islands: closed Oct 15 – May 17
Entrance
Free entry
Contact Us
We continue to experience issues with our phone lines, please contact us via our email address: boha_information@nps.gov
. . . where you can walk a Civil War-era fort, view historic lighthouses, explore tide pools, hike lush trails, camp under the stars, or relax while fishing, picnicking, or swimming—all within reach of downtown Boston. Youth programs, visitor services, research, wildlife management, and more are coordinated on the park's 34 islands and peninsulas by the Boston Harbor Islands Partnership.
No entrance fee.
Boston Harbor Islands is a Partnership park. Operating hours and seasons vary. Visit bostonharborislands.org to plan your trip.
⚠ Boston Harbor Islands: closed Oct 15 – May 17
Generally open:
summerfallHours are reported by the park — verify before you go.
📞 6178193587
✉ BOHA_Information@nps.govQuietest months (fewer crowds): Jan, Feb, Mar, Apr
Typical crowds: low
Weather now: ⛅ Partly cloudy, 69°F
☁️ 75°/69°
☁️ 79°/70°
🌦️ 87°/70°
Typical monthly recreation visits · NPS avg 2023–2025 — orange months are the quietest by crowds.
Quietest months
Relative crowds by month — lighter is quieter; ringed months are the calmest by crowds.
Jan
0%
Feb
0%
Mar
0%
Apr
0%
May
34%
Jun
75%
Jul
100%
Aug
99%
Sep
63%
Oct
27%
Nov
0%
Dec
42%
Log a sky reading
Measured the sky with an SQM meter or app? Add your reading (16 = city glow … 22 = pristine). Opt in under “Travelers like you” to share it on the community leaderboard.
Hike Spectacle Island's Drumlins · 1.5 mi
Visit One of the Boston Harbor Islands
Hike with a Ranger on Spectacle Island · Tours last approximately 45 minutes.
Fort Tours on Georges Island · Tours last approximately 45 minutes.
Take a Lighthouse Cruise · <p>Cruises last approximately 2 hours.</p>
Learn about Boston's "Wicked" High Tides
Camp on the Boston Harbor Islands
Art in the Park at the Boston Harbor Islands
Boston Harbor Islands Welcome Center
Georges Island Visitor Center
Peddocks Island Visitor Center
Spectacle Island Visitor Center
14 audio-described place(s)
Reported by the park — verify before you go.
Not an official safety source — always defer to NPS.gov and rangers for life-safety decisions.
A visual read on Boston Harbor Islands National Recreation Area — its character, trails, sky, and weather.
Park fingerprint
How this park scores across the dimensions travelers care about.
Trail difficulty
Difficulty mix across this park's trails.
3-day forecast
Daily high and low temperatures (°F).
Figures tied to Boston Harbor Islands National Recreation Area — each spans a cross-park journey.
Alexander Stephens
— Georgia, American Civil War, Civil War Prisoner Of War CampsAlice North Lincoln
— Boston, Boston Harbor Islands, Boston HarborBrigadier General Justin Dimick
— Boston, Boston Harbor, Boston Harbor Islands National And State ParkEdward Alfred Pollard
— Civil War, Fort Warren, Georges IslandGeorge Jabez Fisher
— Boston African American National Historic Site, Boston Vigilance Committee 1850, Abolitionist MovementInez Haynes Gillmore Irwin
— Boston Harbor, Boston Harbor Islands National And State Park, SuffragistIsrael Putnam
— American Revolution, Continental Army, MilitaryMajor Stephen Cabot
— Boston, Georges Island, Civil WarMark the stamps you've collected — they show in your memory and along your routes.
🎫 Boston Harbor Islands Welcome Center
🎫 Georges Island Visitor Center
🎫 Spectacle Island Visitor Center

"Asbestos" Sign

"Boston Skyline" Sign

"Changing Shape" Sign

"Dorchester Bay" Sign

"Island Industries" Sign

"Island Remediation" Sign

"Lighting the Way" Sign

"Our Changing Climate" Sign

"President Roads" Sign

"Quincy Bay" Sign

"Sea Glass" Sign

"The Big Dig" Sign
🎧 TEXT: Park Partner ↗ · 1 mintranscript
🎧 IMAGES: Islands ↗ · 1 mintranscript
🎧 MAP: Boston Harbor ↗ · 1 mintranscript
🎧 IMAGE and TEXT: The Drumlin ↗ · 1 mintranscript
🎧 MAP: Waterways ↗ · 1 mintranscript
🎧 OVERVIEW: Boston Harbor Islands National Recreation Area ↗ · 1 mintranscript
🎧 MAP: Legend ↗ · 1 mintranscript
🎧 IMAGE: Fort Warren ↗ · 0 mintranscript
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By winter 1775, colonial troops had fortified virtually the entire area north and south of the Charles River while British forces hunkered down in Boston. Yet there was one area that remained unclaimed and undefended: Dorchester Heights. Although unbeknownst at the time, control of these high points would have an outsized influence in the cause of independence.
A group of staff, volunteers, and partners have spent the last several months through the spring and summer of 2024 monitoring coastal waterbirds at the Boston Harbor Islands. Read this summary of their work!
Seated on Georges Island at the entrance of Boston Harbor, the walls of Fort Warren protected the city of Boston from naval attack for one hundred years. The Fort is now on the National Register of Historic Places, and is open to visitors throughout the spring, summer, and fall.
A glimpse at the newly discovered species of fungus quietly thriving on a peninsula of the Boston Harbor Islands National and State Park & perspective from the park fungi junkie who studies it.
Learn about phenology, or the changing of seasons, through monitoring American Basswoods at the Charlestown Navy Yard.
Learn about phenology, or the changing of seasons, through monitoring American Elms at the Charlestown Navy Yard.
Read about an 1863 escape attempt from Fort Warren on Georges Island.
BLACK in the cradle of liberty is a declaration featuring: DJ WhySham, Nnenna Loveth, Ryan-Rei Fielder, Crystal Valentine, Tim Hall, Ifé Franklin, Danny Rivera, Porsha Olayiwola, Anastasia Wade, Cakeswagg, Javonna Corbin, and Kenard Williams. The performance explores agency, voice, and the power of place.
This park's activities, topics, location, and on-the-ground places — one hop in the graph. Drag to explore; click an activity, topic, or related park to follow it.
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VisitorCenter
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Share activities & topics with Boston Harbor Islands National Recreation Area.