Western Cliffs of Blue Lake
After descending Crooked Couloir in September (which I highly discourage) Blue Lake is a perfect place to cool off on a sunny day. The cliffs on the western side of the lake make it even more appealing, that is if you are in for the shock of the cold water.
(I don't know if SP is the appropriate place to post this. Let me know if you think otherwise and I will take it off)