Four and Four Bravo are maybe the better climbs on the lowers. Not really that hard but the crux is at the top and can be a little tough. It starts with lots of cracks, flakes and ledges and then you work yourself up under a small roof area with a large crack to the right on the face above the roof. Depending on how you do it there are some very small crimpy holds to get you out from under the roof and then move right into the crack. Work the crack up a move or two and then top out from there. It's actually a pretty fun climb with the tough stuff near the top.
Still on the left side of the Lowers but getting more to the middle. The big clue...start in front of the giant 4 painted on the rock.
Direct route: Top rope off the anchors or the Amy cable on top, as there are no bolts after halfway.
Alternate/original exit (ramp to right): Bolted, you'll want some alpine draws if clipping all bolts to minimize rope drag. Some bolts are rusted, even when skipping these there is adequate bolted protection. Note that you cannot top rope this exit unless following a leader.