Apollo 12 Mission
The second crew to land on the moon. The landing site was purposefully close to Surveyor III, a previous robotic mission. While collecting moon rocks they also collected parts from Surveyor III for analysis. The crew spent 31.6 hours on the surface before rendezvousing with the command module, the Yankee Clipper. The patch include a clipper ship in it.
A few statistics:
Crew: Charles Conrad Jr., Alan L. Bean, Richard F. Gordon Jr.
Launch Vehicle: Saturn V
Date: November 14 - 24, 1969
Landing Site: Ocean of Storms