[rbellio]

Or be like me and do both.

Deadlifts, both regular and Romanian, will do wonders for your lower back.

Archery gets you out and moving.

[korethr]

Not just your lower back, but just about every muscle group along the back side of the body. I used to have no strength or definition in either my latissimus dorsi or posterior deltoids. After a few months of regular deadlifts, I now do.