Apollo 10 was pretty much a complete runthrough of getting to the moon's surface, as Apollo 11 soon would, without actually reaching it. Apollo 10 got within nine miles of the moon's surface.
AS11-40-5878 (20 July 1969) --- A close-up view of an astronaut's bootprint in the lunar soil, photographed with a 70mm lunar surface camera during the Apollo 11 extravehicular activity (EVA) on the ...