Swimming Holes near allentown, PA

Best Swimming Holes near Allentown, PA

Allentown sits in the heart of the Lehigh Valley, bracketed by two of Pennsylvania's most rewarding swimming destinations. To the northeast, the Pocono Plateau's stream network — Tobyhanna Creek, Pohopoco Creek, and their tributaries — cuts through second-growth forest and state game lands, creating dozens of secluded pools accessible with minimal hiking. To the east, the Delaware Water Gap is barely an hour away, offering the Lehigh Valley's most dramatic swimming backdrop where the Delaware River slices through the Kittatinny Ridge.

Closer to home, the Lehigh Valley has its own underappreciated options. Beltzville State Park's Pohopoco Creek access offers both a managed beach and wilder upstream swimming, while Blue Marsh Lake near Reading sits just under an hour southwest — a popular option for families who want amenities alongside a natural setting. The region's geology, a mix of sandstone ridges and limestone valleys, creates the variety of swimming environments Allentown residents enjoy: from cold, fast-moving mountain streams to the gentler, warmer waters of lake beaches.

Summer in the Lehigh Valley means understanding the rhythm of the Pocono creeks. Tobyhanna and Pohopoco run cold and clear after dry stretches — they drain higher elevation terrain where snowmelt lingers into late spring, which means they stay swimmable well into July even in drought years. Plan your best Pocono creek trips for late June and July; by mid-August, lower water levels can reduce the best holes to knee-deep wading spots.

TL;DR:

  • Delaware Water Gap is the standout destination, about 1 hour east via Route 22 or I-78
  • Beltzville State Park has both a managed beach and wild creek access on Pohopoco Creek
  • Tobyhanna and Pohopoco creeks offer secluded Pocono swimming 45–60 minutes north
  • Blue Marsh Lake near Reading is a good family option with lifeguarded beaches
  • Peak season is late June through August; Pocono creek levels drop by mid-August

Top 5 Swimming Holes Near Allentown

  1. [[Listing: DELAWARE WATER GAP]] – Roughly one hour east of Allentown via Route 22, the Delaware Water Gap National Recreation Area is the region's premier natural swimming destination. The gap itself — a dramatic passage where the Delaware River cuts through the Kittatinny Ridge — frames a swimming experience unlike anything else within two hours. Cold, deep pools form at river bends, and on the Pennsylvania side, access points near Dingmans Ferry and Delaware Water Gap borough put you close to some of the best swimming coves. A must-visit at least once a summer.

  2. [[Listing: TOBYHANNA CREEK]] – About 45 minutes north of Allentown via Route 611, Tobyhanna Creek runs cold and clear through Monroe County's forested terrain. The creek braids through a mix of state game lands and private property, so access requires some research — the best entry points are near Blakeslee and along Route 115 crossings. Water temperatures stay refreshingly cold into mid-summer thanks to the higher elevation drainage basin, and the forest canopy keeps things cool on hot days. Best visited on a weekday when you'll have the creek to yourself.

  3. [[Listing: POHOPOCO CREEK]] – Pohopoco Creek feeds Beltzville Lake and offers excellent swimming upstream of the dam, particularly in the stretch from Pohopoco and Andreas toward the state park. About 30 minutes north of Allentown via Route 209, the creek has a series of pools and runs that feel more remote than their proximity to the highway suggests. The gravel bars and rocky mid-channel pools are perfect for a midday swim. Water quality is generally good; avoid swimming within 48 hours of heavy rain.

  4. [[Listing: BELTZVILLE STATE PARK]] – Beltzville State Park near Lehighton, about 25 minutes north of Allentown via Route 209, centers on Beltzville Lake — a 949-acre reservoir with a designated swimming beach. The beach has lifeguards in season, restrooms, picnic pavilions, and a concession stand, making it the most family-friendly option on this list. A parking fee applies. Beyond the beach, the park's trails along Pohopoco Creek upstream of the lake offer more adventurous swimming for those willing to hike a short distance from the trailhead.

  5. [[Listing: BLUE MARSH LAKE]] – Blue Marsh Lake, managed by the U.S. Army Corps of Engineers near Reading, is about 50 minutes southwest of Allentown via Route 222. The 1,148-acre lake has multiple swimming areas, with the main beach at Dry Brooks Day Use Area offering lifeguard coverage in summer months. The lake is surrounded by 6,000 acres of public land, and water quality is generally excellent — it's fed by Blue Marsh Creek and monitored regularly. A solid option for families or anyone wanting a full beach day with amenities.

When to Go

Best Season: Late June through Labor Day is the prime window. The Pocono creek spots (Tobyhanna, Pohopoco) are best from mid-June through late July when flow is adequate for swimming. Beltzville and Blue Marsh lakes are ideal throughout summer and into early September.

Best Conditions: Plan creek swims after 5–7 days of dry weather. The Pocono plateau sees frequent afternoon thunderstorms in July and August — these can spike creek levels quickly and temporarily degrade water quality. Delaware Water Gap swims are best on calm, rain-free stretches.

Timing: Beltzville State Park fills to capacity on hot summer weekends — arrive before 10 a.m. or visit on a weekday. Delaware Water Gap access areas also crowd on summer Saturdays; the Pennsylvania side tends to be slightly less trafficked than the New Jersey side.

Late Summer Warning: Tobyhanna and Pohopoco creek levels drop noticeably by mid-August in most years. Check recent rainfall data or call Monroe County's ranger station for current conditions before making the drive.

Safety & Access Notes

Current and Depth Awareness: Pohopoco Creek and Tobyhanna Creek can carry unexpectedly strong currents after rain despite looking calm. The Delaware River at the Water Gap has a consistent, powerful current in the main channel — stay to the edges and coves.

No Lifeguards at Wild Spots: The creek swims on this list are unpatrolled. Never swim alone. Keep children within arm's reach in moving water.

Water Shoes Required: Rocky creek beds in the Pocono region are slippery with algae and uneven with cobbles. Shale outcrops along Pohopoco can have sharp edges. Flip-flops are not adequate — wear closed-toe water shoes.

Parking and Access: Route 209 corridor spots have informal pull-offs with limited space. Do not block the roadway. For Beltzville State Park and Blue Marsh Lake, follow posted parking regulations and expect fees in peak season.

Sun and Lightning: Open lake swims at Beltzville and Blue Marsh offer little shade. Bring sunscreen and a hat. Pocono afternoon thunderstorms develop fast — if you hear thunder, exit the water immediately and seek shelter away from trees.

FAQs

How far are swimming holes from Allentown?
Beltzville State Park is the closest at about 25 minutes north via Route 209. Tobyhanna Creek and Pohopoco Creek accesses are 30–45 minutes north via Routes 209 and 611. Delaware Water Gap is approximately one hour east via Route 22. Blue Marsh Lake near Reading is about 50 minutes southwest via Route 222.

Is the water safe to swim in near Allentown?
Managed beaches at Beltzville and Blue Marsh are monitored for bacteria and posted when conditions are unsafe. Pocono creek water is generally clean during dry stretches, though agricultural runoff can affect quality after rain. Avoid swallowing water and stay out of creeks for 48 hours after significant rainfall.

Do I need a permit for swimming holes near Allentown?
Wild creek access points on Tobyhanna and Pohopoco do not require permits, but you must use public rights-of-way. Beltzville State Park and Blue Marsh Lake charge vehicle parking fees in season. Delaware Water Gap National Recreation Area charges fees at some developed areas.

What should I bring to a swimming hole near Allentown?
Bring water shoes, sunscreen, a towel, drinking water, snacks, and a dry bag for your phone and keys. For Pocono creek trips, add a paper map or offline GPS — cell service can be spotty in Monroe County's forested areas. Always bring more water than you expect to need, especially on hot days.

Responsible Recreation

The Lehigh Valley's swimming spots stay accessible because the people who use them follow the rules. At Beltzville State Park and Blue Marsh Lake, that means staying within posted swim zones, obeying lifeguard instructions, and packing out all trash. At the wilder Pocono creek spots, it means leaving no trace — carry out everything you carry in, including food scraps that attract wildlife.

Pohopoco Creek's streambanks are particularly fragile in some sections — eroded banks signal that too many people have taken the same shortcut to the water. Use established access points rather than creating new ones. Respect private property boundaries; the goodwill of adjacent landowners is the reason some of the best creek access exists at all.

The Delaware Water Gap sees enormous visitor pressure in summer — hundreds of thousands of visitors annually. Following Leave No Trace principles there isn't optional; it's what keeps this spectacular national recreation area functioning for everyone.

Disclaimer: Conditions at natural swimming holes change constantly. This guide is for informational purposes only. Water levels, access, and safety conditions vary — always assess conditions on arrival. Your safety is your own responsibility.