You would find The Man Of Steel working hard on a story at the Times News...or B.A.S.E. jumping from the Perrine Bridge
Batman would be working on his climbing at Gem Stone Climbing. Plus it kind of looks like a cave in there.
Wonder Woman would be found downtown at Studio G exercising or practicing sword play at ATA Martial Arts
You'd find The Flash (if you could see him) running the newly improved Canyon Rim Trail.
Cyborg is always upgrading so you may find him searching for parts at the Jalopy Jungle.
Dierkes Lake of course. Where else could you expect to find Aquaman?
Not a member of the League, but you'd still find him at Poindexter's.