Rock Jumper

Rock Jumper is a magazine on jumping from rock to rock in canyons and the such.

History
When Marge Simpson became weary of her usual Sponge and Vacuum magazine, she looked for magazines on death sports and found this one, along with other death sports magazines like Bear Baiter, Cliff Biker Magazine, Danger Liker, Glass Eater, and Mosh Pitter.