Adam Grosowsky figures out his next move while climbing out of a cave above the Morning Glory Wall at Smith Rocks State Park near Terrebonne. Grosowsky is renowned as a father of Òslacklining,Ó a form of tight rope walking that is now common among rock climbers. He was the first one to walk a line between the spire Monkey Face and the main bluff at Smith Rocks State Park in Oregon, which is hundreds of feet above the ground.