Historic Robert’s Quarry — cliff jumping spot in Cortlandt Manor, New York
Verified

Historic Robert’s Quarry

Cortlandt Manor, New York

About this spot

An abandoned, flooded stone quarry near Walter Panas High School, now hidden by dense forest. It has steep rock faces with jumps estimated around 20–40+ ft. The water may look clear but quality and submerged hazards are unverified, so swimming carries risk. The quarry appears to be on private/restricted property, meaning trespassing and swimming may be illegal but not enforced. BE SURE TO DEPTH CHECK BEFORE JUMPING. During droughts it can become extremely shallow

Safety first. Cliff jumping is inherently dangerous and can cause serious injury or death. Conditions — water depth, submerged hazards, and access — change constantly. CliffScout is community-sourced reference information, not a guarantee a spot is safe. Always assess the conditions yourself before jumping, and never jump where you're unsure. You assume all risk.
Get the CliffScout app — free ↓