A national park in California's Sierra Nevada where Kirk, Spock and McCoy take shore leave in Star Trek V, and where Kirk falls while free-climbing El Capitan.
Yosemite National Park is a protected wilderness in the Sierra Nevada mountains of California, famous for its granite cliffs, and it remains a park in the 23rd century.
In Star Trek V: The Final Frontier, set in 2287, Kirk, Spock and McCoy camp there while the new USS Enterprise-A is being put in order. Kirk climbs the sheer face of El Capitan without ropes, is distracted by Spock hovering alongside in levitation boots, and falls. Spock catches him just short of the ground.
That evening the three share beans and bourbon by the fire, try to teach Spock a camp song, and Kirk reflects that he has always known he will die alone. The leave is cut short by the Nimbus III crisis, and the film ends with the friends back at the campfire.