A small, scenic tributary of the Delaware River, Adams Creek flows for about two and a half miles through the Delaware Water Gap National Recreation Area.
Here is a great description I found off thebackpacker.com..
"Adams Creek is very beautiful. Hike up along an old forest road above the creek. You'll pass a small chasm to the right, it has a small 5 ft falls. After a mile, and several stream crossings, you reach a 15 foot slide in a deep, awesome pool. The trail scrambles to the right and reaches Adams Falls- a 30 ft plunge in a deep pool. Above this falls are cliffs and an incredible 100 ft deep chasm that is unreachable. I scrambled to the top of the cliffs with a great view and walked along the rim of the chasm- far below was another 30 ft falls, then a 10 ft falls and a 30 foot chute. The chasm was incredible. The terrain leveled with several 5 ft cascades and an old stone mill, that was remarkably preserved."