We will hike in and set up advanced base camp at the stunning Green Lakes at the base of Broken Top and South Sister, both of which we will then climb. Broken Top is mostly a tough hike and scramble, but we will protect the summit block as it has a few 5th class moves. Similarly, a short rappel off the summit block should be expected. The second climb day will tackle the highest of the Three Sisters. Charity (aka South Sister) is Oregon's third highest mountain at 10,363' above sea level. Because we will be starting from at Green Lakes many will have the opportunity to tackle a climb route new to them. Priority will be given to those who have taken BCEP, but don't yet have many climbs on their resume.