The Grotto
By Armen Suny · Last verified May 2026
Photo Credits (5)
Difficulty
Moderate
Trail Length
2.4 miles
Trail Type
Out And Back
Elevation Gain
350 ft
About The Grotto
The Grotto is a small, picturesque waterfall tucked into the woods of the Wissahickon Valley in Pennsylvania. Nestled on county-owned land and managed by the county, the falls are framed by unique rock formations and moss-covered boulders that create a serene, photogenic pocket of rippling water and lush greenery. It’s a favorite spot for nature lovers and photographers seeking a quiet, intimate streamside setting. Access is via a moderate out-and-back hike that rewards visitors with close-up views of the grotto and its layered stone walls. The site sits within the Wissahickon Valley land unit (designation LP) and is maintained by the county, so expect a natural, forested experience rather than developed infrastructure. Plan for a short hike and bring a camera — the light and textures around the falls make for great shots year-round.
The Setting
The Grotto sits at 279 feet within Wissahickon Valley, fed by the Wissahickon Creek, in the coastal lowlands of Pennsylvania.
Trail & Hike Details
The Approach
The moderate 2.4-mile out and back trail gains 350 feet of elevation on the way to the falls.
Trail Description
The trail to The Grotto is a 2.4-mile out-and-back with roughly 350 feet of elevation gain and is rated moderate. The route follows a forested path that can be uneven in places, passing through mossy, shaded terrain before arriving at the small waterfall and rocky amphitheater. The walk is generally accessible to most hikers who can handle moderate grades and natural surface trails; there is no USFS trail number or official federal trail classification associated with this county-managed route. Expect natural footing and occasional roots and rocks—sturdy footwear is recommended.
What to Expect
Dogs are welcome.
Accessibility
The trail is not wheelchair accessible. Uneven terrain and elevation changes require steady footing.
Frequently Asked Questions
🐶 Are Dogs Allowed at The Grotto?
✅ Dogs are allowed
Are There Any Fees or Permits Required?
🆖 No fees required
🏊 Is There Swimming at The Grotto?
❌ Swimming is not allowed
When to Visit
Spring and early summer are ideal times to visit, as the waterfall flow is typically stronger due to seasonal rainfall.
Seasonal Access
The best time to visit is Spring, Summer, and Fall. Winter access may be limited.
Safety Information
Exercise caution on wet or slippery rocks near the waterfall. Be aware of ticks and other insects in the area. Always stay on marked trails to avoid getting lost.
Current Water Conditions
193 ft³/s
Current discharge — how much water is flowing
Much higher than usual for this time of year
Based on 60 years of record
2.71 ft
Water depth at gauge
72°F
ComfortablePleasant for swimming
7-Day Discharge Trend
What does this mean for your visit?
The water is flowing much higher than usual, expect an impressive display. The water is a comfortable 72 degrees F, pleasant for swimming. Expect slightly cloudy visibility and adequate dissolved oxygen levels. PH is normal at 7.6 and mineral content is typical.
Water Quality
Dissolved Oxygen
GoodAdequate oxygen levels
pH
NormalWithin healthy range (6.5-8.5)
Water Clarity
Slightly cloudyMinor sediment present
Conductance
Dissolved minerals in the water
About This Gauge
7-Day Flow Outlook
Based on the USGS gauge Wissahickon Creek at Mouth, Philadelphia, PA (6 km away).
Today
Roaring
343 cfs
9/10Tomorrow
Roaring
313 cfs
9/10Wed
Roaring
307 cfs
9/10Thu
Roaring
301 cfs
9/10Fri
Roaring
350 cfs
6/10Sat
Roaring
357 cfs
6/10Sun
Roaring
371 cfs
6/10Best window: Today — roaring flow, mostly sunny (trip score 9/10).
Best time of year: this gauge typically runs highest from mid February to late April, peaking in March.
How we calculate this
This is a transparent outlook, not a precise forecast. We take the waterfall's current flow strength (how it ranks against its historical normal for today, from the nearest USGS stream gauge), carry that ranking forward along the gauge's seasonal curve, and nudge it for forecast rain. Confidence is highest for the next day or two and falls further out. Always check official conditions and your own judgment before visiting — high flows can be dangerous.
Know when to go.
Get a free email alert when waterfalls near Wyndmoor hit peak flow. We only send when conditions are worth the trip — no weekly newsletters, no spam.
Weather Forecast
Location & Access
Getting There
The Grotto is located within the Loyalsock State Forest in Pennsylvania. Access typically involves driving to a nearby parking area and hiking a short trail to reach the waterfall.
Get Directions on Google MapsParking
Parking is available at designated trailheads within the Loyalsock State Forest. Visitors should check local maps or signage for the nearest parking area.
Hours
Elevation
279 feet above sea level
Coordinates
40.065111° N, -75.197955° W
Land Management
Managed by CNTY
Visitor Tips & Gear
Wear sturdy shoes as the trail may be uneven or muddy, especially after rain. Bring insect repellent during warmer months. Arrive early to avoid crowds, especially on weekends.
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With 2.4 miles and 350 ft of elevation gain, sturdy boots and trekking poles will help on this moderate trail. Sun exposure on the trail makes good sun protection a must in summer.
Polarized Sunglasses (Knockaround)
Cuts glare off the water so you actually see the falls — and your photos turn out better too.
Columbia Watertight II Rain Jacket
Packs into its own pocket, seam-sealed, and keeps you dry from spray and surprise rain.
Earth Pak Waterproof Dry Bag
Keeps your phone and gear dry when waterfall mist soaks everything else.
Waterproof Phone Pouch (AiRunTech)
Cheap insurance — take photos right next to the falls without killing your phone.
Timberland Euro Sprint Mid Waterproof
Trusted waterproof boot with premium leather and grippy rubber sole — reliable on rocky, wet trails.
TrailBuddy Trekking Poles
Lightweight aluminum, cork grips, and flip-locks that actually hold — a best-seller for good reason.
Where to Stay
Holiday Inn Express & Suites Ft. Washington - Philadelphia by IHG
Hampton Inn Plymouth Meeting
Hilton Garden Inn Philadelphia-Fort Washington
Hampton Inn Philadelphia/Willow Grove
Browse vacation cabins and private rentals nearby
Unique outdoor stays — tents, yurts, and treehouses
Rent a campervan or RV for your waterfall road trip
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Additional Information
Nearby Attractions
Other attractions in the Loyalsock State Forest include the Haystacks Rapids and the Loyalsock Trail, which offers additional hiking opportunities.
Wildlife
The area is home to various wildlife, including deer, birds, and small mammals. Visitors may also see a variety of native plants and wildflowers.
Cities near The Grotto
Nearby Waterfalls
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