In the early nineties as I learned to climb, I spent a lot of time on the cliffs and crags of Squamish. When I was twenty years old I climbed Diedre (5.7, II+) for the very first time. And at that point in my climbing career, the ascent was life-changing. I had never really done anything longer than two pitches prior to that, and so the completion of a six pitch moderate route was a major achievement.
Diedra was put up in the early sixties on a formation in Squamish called "The Apron." There are a number of moderate routes on The Apron as it is a lower-angled formation. Diedre climbs through some slabs to attain a beautiful corner crack, which you follow for three pitches.
The climbing is never terribly hard, but it is exhilarating. The views of Howe Sound, the Stawamus Chief and nearby Mt. Garabalidi are absolutely stellar.