This free Appalachian park sits between two states and has waterfalls most people drive past

Where the Delaware cuts through the Appalachians

Right between New Jersey and Pennsylvania, the Delaware River punches a gap straight through the Appalachian Mountains.

The national recreation area that wraps around it covers about 70,000 acres and stretches 40 miles along the water.

You get towering waterfalls on both sides of the river, a glacial lake sitting on a mountaintop, and trails that climb ridges with views for miles. No entrance fee, either.

The waterfalls alone could fill a whole weekend, and that’s before you even touch the river.

A failed dam project saved this whole valley

Congress approved a plan in 1965 to dam the Delaware River at Tocks Island.

The project forced out roughly 15,000 people and flattened thousands of homes and historic buildings. Then everything fell apart.

Environmental groups fought it, displaced residents pushed back, funding dried up, and engineers found fault lines in the area. By 1978, the government dropped the whole thing.

The Park Service took over the land, and the river kept flowing free. Today, the Middle Delaware carries a National Scenic and Recreational River designation.

Pennsylvania’s tallest waterfall drops 150 feet in three tiers

Raymondskill Falls hits about 150 feet across three cascading tiers, making it the tallest waterfall in Pennsylvania.

The trail to reach it runs only a third of a mile, but the path is steep and uneven with plenty of spots to trip. Two platforms give you views of the top and middle sections.

The upper parking lot shuts down from January through mid-April every year.

On summer weekends and holidays between Memorial Day and Labor Day, you’ll need to park at the Milford Knob Trailhead and catch a free shuttle in.

Two waterfalls share one short boardwalk trail

Dingmans Falls drops 130 feet, the second tallest waterfall in Pennsylvania.

Just nearby, Silverthread Falls plunges about 80 feet through a narrow rock channel barely wider than a doorway. A short, ADA-accessible boardwalk normally connects both from the Dingmans Falls Visitor Center.

But as of early 2026, the access road, visitor center, and trail are all closed for bridge replacement and trail work. No foot traffic allowed.

Check the Park Service conditions page before you plan around these two.

New Jersey’s tallest waterfall sits right off the road

Buttermilk Falls tumbles down the rock face off the Kittatinny Ridge on the New Jersey side, and you can spot it from your car. A steep wooden staircase takes you up to viewing platforms partway and at the top.

The cascade runs hardest in spring and after heavy rain, when water pours over every ledge. Getting there can be tricky, though.

Seasonal road closures and rough conditions sometimes block access, so check the Park Service conditions page before you drive out.

Three waterfalls line up along one creekside trail

The George W. Childs Recreation Area packs three waterfalls into a single walk along Dingmans Creek on the Pennsylvania side.

Factory Falls, Fulmer Falls, and Deer Leap Falls follow one after another through shaded forest.

Fulmer is the biggest at about 56 feet, and it cascades into a curved rock basin that catches the light in the afternoon. The parking lot closes from early January through mid-April.

The land itself came from the widow of George W. Childs, a 19th-century philanthropist who owned the property.

Mount Tammany’s summit sits 1,527 feet above the gap

Few hikes in New Jersey pull a crowd like Mount Tammany. The Red Dot and Blue Dot loop covers about 3.6 miles with roughly 1,200 feet of elevation gain.

At the top, you’re standing 1,527 feet above sea level, looking straight down at the Delaware Water Gap. The trailhead sits right off Interstate 80, which makes it easy to reach but hard to park on warm weekends.

The Park Service recommends going up on the Red Dot trail and coming down on the Blue Dot, which is less steep on your knees.

A glacial lake from the last ice age sits on a ridge

Sunfish Pond covers 44 acres on top of the Kittatinny Ridge at about 1,379 feet.

The Wisconsin Glacier carved it out during the last ice age, and it holds the title of the southernmost glacial tarn on the Appalachian Trail.

The state named it one of the Seven Natural Wonders of New Jersey, and it became a National Natural Landmark in 1970. The water is highly acidic, so only a few tough fish species survive in it and swimming is off-limits.

Most hikers reach it on a roughly four-mile trek from the Dunnfield Creek parking lot off Interstate 80.

Forty miles of calm water run through mountain scenery

The Middle Delaware flows for 40 miles through the recreation area and ranks as one of the longest free-flowing rivers east of the Mississippi.

The water stays calm with gentle Class I rapids, so it works well if you’re new to paddling or bringing the family. You can canoe, kayak, raft, or stand-up paddleboard through forested riverbanks and mountain views.

Several outfitters nearby rent gear and run guided trips.

In summer, lifeguards staff swimming beaches at Milford Beach and Smithfield Beach on the Pennsylvania side.

Bike or hike 32 miles of packed gravel along the river

The McDade Recreational Trail stretches roughly 32 miles along the Pennsylvania side, running between the Hialeah Recreation Site and Milford Beach.

The packed-gravel surface works for hiking, biking, and cross-country skiing in winter. You’ll pass through farm fields, forests, and stretches where the river comes into view between the trees.

Bring a mountain bike or hybrid, because road bikes can’t handle the crushed stone. Some sections roll flat and easy for families, while others climb hills that will test your legs.

An 1800s village and one of America’s oldest roads

Millbrook Village on the New Jersey side re-creates rural life from the 1800s.

It started with a grist mill built in 1832, and by 1875 about 75 people lived there before the railroad passed it by. You can walk the grounds year-round, and volunteers open the buildings for demonstrations in summer.

Old Mine Road runs about 40 miles through the New Jersey side and is considered one of the oldest continuously used roads in America.

It passes Dutch colonial structures, old farms, and the Van Campen Inn from the colonial era.

A 3.5-mile section at the northern end is under construction starting April 2026 as part of a $16.9 million repair project, so check for closures before you go.

Every season reshapes the park from ridge to river

Fall lights up the ridges and valleys with color that draws leaf-peepers and photographers from across the region.

Winter quiets everything down, and you can cross-country ski or snowshoe on closed park roads and trails without another person in sight.

Spring sends water rushing over every waterfall at peak flow while rhododendrons bloom along the creek trails.

Summer is the busiest stretch, with swimming, paddling, camping, and enough daylight to fit in a long hike after dinner. Black bears, white-tailed deer, bald eagles, and songbirds show up in every season.

Explore the Delaware Water Gap in New Jersey and Pennsylvania

You can reach the recreation area in about 70 miles from New York City, and Interstate 80 runs right through the southern end at the Water Gap.

Two visitor centers serve the park: Kittatinny Point on the New Jersey side and park headquarters in Bushkill, Pa. The park stays open 24 hours a day, year-round, with most day-use areas running sunrise to sunset.

No entrance fee applies, though some spots charge expanded amenity fees in warmer months. Check the official website for current conditions before you head out.

This article was created with AI assistance and human editing.

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