Best natural monuments in Philadelphia County offer diverse natural landscapes within an urban setting. The county features expansive urban woodlands, marshlands, and riverfront areas, providing opportunities for outdoor activities. These natural spaces are characterized by varied terrain, including steep wooded slopes and flat trails. Philadelphia County's natural monuments provide access to green spaces and historical elements.
Last updated: April 25, 2026
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Popular around Philadelphia County
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Hiking in Philadelphia County
Road Cycling Routes in Philadelphia County
Running Trails in Philadelphia County
MTB Trails in Philadelphia County
Cycling in Philadelphia County
Gravel biking in Philadelphia County
You get a great view of the Philly skyline from atop Belmont Plateau, which is crowned by sports fields and the Underground Railroad Museum. There are many great roads to explore in the park network here.
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This rocky outcropping in Wissahickon Valley Park is said to have been the site of a Romeo & Juliet type ending for a Native American couple whose disputing tribes forbade them the marriage they desired.
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Referred to as "Hermit's Cave" or "Kelpius Cave," this location was believed to serve as the entrance to the dwelling of Transylvanian scholar Johannes Kelpius. He held the belief that the world would come to an end in 1694, leading his followers from the "Society of the Women in the Wilderness" to this very spot.
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Discover the charm of Washington Square Park, where a delightful fountain takes center stage. This green and vibrant park is a haven for picnickers, families, sunbathers, and history buffs seeking a break from the city hustle.
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Referred to as "Hermit's Cave" or "Kelpius Cave," this location was believed to serve as the entrance to the dwelling of Transylvanian scholar Johannes Kelpius. He held the belief that the world would come to an end in 1694, leading his followers from the "Society of the Women in the Wilderness" to this very spot.
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Referred to as "Hermit's Cave" or "Kelpius Cave," this location was believed to serve as the entrance to the dwelling of Transylvanian scholar Johannes Kelpius. He held the belief that the world would come to an end in 1694, leading his followers from the "Society of the Women in the Wilderness" to this very spot.
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Among the most well-liked swimming spots in the region, this area, although swimming is technically prohibited, earned its name from the Leni Lenape people. They held the belief that this specific location served as a boundary between the realms of good and evil.
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Sadly, partygoers have left a ton on trash at this otherwise nice spot
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Among the most popular natural monuments are Devil's Pool, known for its historical significance to the Leni Lenape people, and the View of Philadelphia Skyline from Belmont Plateau, which offers expansive city views. Visitors also frequently explore Kelpius Cave, a historical site believed to be the dwelling entrance for scholar Johannes Kelpius.
Yes, several natural monuments are suitable for families. Kelpius Cave is listed as family-friendly, offering a historical and natural experience. Additionally, the View of Philadelphia Skyline from Belmont Plateau provides an accessible viewpoint for all ages. Washington Square Park, featuring the Washington Square Fountain, is also a green and vibrant space popular with families for picnics and relaxation.
Philadelphia County offers a variety of hiking trails. Wissahickon Valley Park, a significant natural monument, features over 50 miles of diverse trails, including the popular car-free gravel path known as Forbidden Drive. You can find routes ranging from easy to difficult, such as the 'Wetland Loop Trail' (easy) or the 'Wissahickon Orange, White, and Yellow Trail Loop' (difficult). For more options, explore the Hiking in Philadelphia County guide.
Yes, cycling is a popular activity. Wissahickon Valley Park's Forbidden Drive is ideal for cycling. Fairmount Park also provides miles of trails for biking. For road cycling, routes like the 'Schuylkill River Trail Loop' or the 'Martin Luther King Jr. Drive – Boathouse Row loop' are available. Discover more routes in the Road Cycling Routes in Philadelphia County guide.
Many natural monuments in Philadelphia County have historical significance. Kelpius Cave is a notable historical site, believed to be the dwelling of Johannes Kelpius and his followers. Wissahickon Valley Park features 19th-century stone arch bridges and WPA-era rustic shelters. Fairmount Park itself was established to protect Philadelphia's water supply, and areas like Washington Square Park with its fountain also hold historical context.
The natural monuments in Philadelphia County offer beauty year-round. Autumn is particularly popular for viewing spectacular fall foliage, especially in areas like Wissahickon Valley Park with its diverse tree species. Spring brings blooming dogwoods and magnolias, while summer is ideal for outdoor activities. Even winter offers opportunities for quiet hikes, though some trails might be more challenging.
Yes, wildlife observation is a highlight in several areas. John Heinz National Wildlife Refuge at Tinicum is a critical habitat for diverse wildlife, especially numerous bird species, making it a birdwatcher's paradise. Wissahickon Valley Park is also rich in wildlife, including opossums, white-tailed deer, raccoons, red foxes, coyotes, and a variety of birds, earning it an Important Birding Area designation.
Absolutely. The View of Philadelphia Skyline from Belmont Plateau provides an expansive panorama of the city. Within Wissahickon Valley Park, Lover's Leap is a rocky outcropping offering scenic views of the forest and creek gorge.
The terrain varies significantly across Philadelphia County's natural monuments. Wissahickon Valley Park is characterized by steep, wooded slopes with craggy schist, gneiss, and quartzite formations. In contrast, John Heinz National Wildlife Refuge at Tinicum offers more than 10 miles of flat trails and boardwalks through marshland. Fairmount Park features rolling hills, gentle trails, and shaded woodlands.
While popular spots can attract many visitors, areas like John Heinz National Wildlife Refuge at Tinicum, though well-known, can offer a surprisingly wild and peaceful setting, especially on its extensive network of flat trails and boardwalks. Exploring less-trafficked sections of Fairmount Park or Wissahickon Valley Park during off-peak hours can also provide a quieter experience.
Many natural monuments in Philadelphia County are accessible via public transportation. Wissahickon Valley Park, for instance, has various entry points that can be reached by SEPTA buses. Fairmount Park is also well-served by public transport routes. It's advisable to check specific routes and schedules for your chosen destination.
Generally, permits are not required for hiking on public trails within Philadelphia County's natural parks like Wissahickon Valley Park or Fairmount Park. However, it's always good practice to check for any specific regulations or temporary closures before your visit, especially for organized events or certain activities.
Philadelphia County offers excellent running trails. The car-free Forbidden Drive in Wissahickon Valley Park is a popular choice for runners. Fairmount Park also provides numerous trails suitable for running. You can find routes like the 'Mercury Pavilion – Boathouse Row loop' or the 'Wissahickon Creek loop'. For detailed running routes, consult the Running Trails in Philadelphia County guide.


Find even more amazing natural monuments in Philadelphia County by checking out the top Highlights region by region:
Extend your search for the best caves by checking out these guides of the top ones in Philadelphia County: