The Cliffs of Heaven was a location on the planet Sumiko IV, where cliffs overlooked a body of water. Diving was possible off the cliffs, although it was challenging for a novice to do so without injury.

The location was available as a holodeck program aboard the USS Enterprise-D as program 47-C. Kristin was injured twice while using the program, leading Doctor Beverly Crusher to suggest the Emerald Wading Pool on Cirrus IV as an alternative. (TNG: "Conundrum")