brisk

Often called “Mr. Snap, Crackle” in tribute to his brisk, articulate drumming style, he wrote a signature tune with the same name for his own 1962 album, “Out of the Afternoon.”

Some, like the SoCal Stair Climbers, average a brisk 2.5 miles an hour as they explore L.A.’s myriad stair walks.

Skill level: Moderate to “brisk”

Gutierrez likes to keep his walking “brisk,” averaging 2.5 miles a hour, but he also stops frequently to offer mini lessons in history and architecture, which is how he gives people a chance to catch their breath.

Chinese tourists huddle together against the brisk autumn breeze on a 12-storey building, vying for the best spot to photograph the point where their country meets Russia and North Korea.