We're heading to Little Si with Alison to learn about rock climbing and bouldering! Cecil Sherwood is an avid all-terrain climber, mountaineer and guide, who has never let his circumstances prevent him from getting outside. On the new episode of Out & Back, he coaches Alison to face her biggest fear: heights! As she attempts to scale a massive boulder at Little Si. Watch more episodes of Out & Back with Alison Mariella Désir on the Cascade PBS app. https://bitl.to/49Ml | Cascade PBS