Neil and Buzz barely got out of the infield

The Apollo 11 astronauts exploration of the move would have kept them within the confines of a football (soccer) field and the majority of their time was spent in within a baseball field. I'd never really thought about it, but of course you'd want to be as cautious and as close to safety as possible.

Astronauts on subsequent missions ventured much further. The Apollo 12 crew ventured 600 feet from the LM on their second walk of the mission. The Apollo 14 crew walked almost a mile. After the Lunar Rover entered the mix, excursions up to 7 miles during EVAs that lasted for more than 7 hours at a time became common.

Imagine being 7 miles away from safety. On the moon!