Washington Rock – Hemlock Falls loop from Turtle Back Zoo

If you're looking for a challenging and rewarding jogging route in New Jersey, the Washington Rock – Hemlock Falls loop from Turtle Back Zoo is definitely worth your time. This difficult 12.1-mile (19.5 km) route packs in 1133 feet (345 metres) of elevation gain, making for an intense 2 hours and 15 minutes of running. It's perfect for experienced joggers seeking varied terrain, historical viewpoints, and a stunning waterfall.

What to expect on Washington Rock – Hemlock Falls loop from Turtle Back Zoo

The route offers a dynamic journey through South Mountain Reservation, blending shaded paths with rugged, rocky sections and even some paved stretches. You'll navigate rolling hills and steep ascents, particularly on the way to Washington Rock, which provides breathtaking vistas of the New York City skyline on clear days. The trail then winds through dense hemlock forests and lush woodlands before reaching the stunning 25- to 30-foot Hemlock Falls. Be prepared for muddy sections, especially after rain, and a potentially steep, unsigned downhill stretch leading to the falls, which adds to the overall difficulty. This loop is best suited for those who enjoy a good workout with diverse scenery.

Planning your visit

This popular route starts near the Turtle Back Zoo, making it easily accessible. Parking is available in the vicinity, but it's wise to arrive early, especially on weekends, as the area can get busy. The trail system is dog-friendly, so feel free to bring your leashed canine companion. While generally considered moderate for hiking, its length and elevation gain push it into the difficult category for jogging, so plan your hydration accordingly, especially on warmer days. The varying flow of Hemlock Falls means a visit after recent rainfall will offer the most impressive views.

Trail details

• Distance: 12.1 miles (19.5 km)
• Elevation gain: 1133 feet (345 metres)
• Difficulty: difficult
• Estimated time: 2 hours and 15 minutes