The Lehigh River is a 103-mile long tributary of the Delaware River that flows through eastern Pennsylvania. Originating in the glacial bogs north of Gouldsboro in the Pocono Mountains, the river flows generally southward through the Lehigh Valley before joining the Delaware River in Easton. Major tributaries include Bear Creek, Black Creek, and Jordan Creek.

The Lehigh offers diverse paddling opportunities along its course. The upper section from White Haven to Jim Thorpe features exciting Class II-III whitewater as the river cuts through Lehigh Gorge State Park. This 25-mile stretch is popular for whitewater rafting and kayaking, with the 12-mile upper gorge (White Haven to Rockport) and 13-mile lower gorge (Rockport to Glen Onoko) being the main whitewater runs. Below Jim Thorpe, the river widens and slows, providing scenic flatwater paddling through the Lehigh Valley. Difficulty ranges from Class I flatwater to Class III rapids, with some Class IV possible at high water in the gorge. The upper sections require whitewater skills and equipment, while the lower river is suitable for beginners.

Spring and fall are ideal paddling seasons, with summer releases from Francis E. Walter Dam providing reliable flows for whitewater. The river corridor hosts diverse wildlife including bald eagles, osprey, and river otters. Paddlers can enjoy views of forested mountains, historic canal locks, and industrial ruins from the region's coal mining past. Key landmarks include the Francis E. Walter Dam, the town of Jim Thorpe, and the former Bethlehem Steel plant.

Major access points include White Haven, Rockport, Glen Onoko, Lehighton, and Easton. The Delaware & Lehigh National Heritage Corridor parallels much of the river, offering opportunities for bike shuttles. The Lehigh played a crucial role in the Industrial Revolution, powering mills and transporting anthracite coal via the Lehigh Canal. Today it's a popular recreation destination, though paddlers should be aware of hazards like dams and required permits in some sections.

Multi-day trips are possible, with primitive campsites available in Lehigh Gorge State Park. The 72-mile Lehigh River Water Trail offers a longer paddling adventure from White Haven to Easton.