Swim Fin is a popular rock due to its accessibility and the high concentration of moderate climbs in this immediate area. Shade can usually be found on one side of the rock, depending on time of day and season. Certainly a full day can be had in this area, though some of it may be spent waiting in line.
The most recommendable route on Swim Fin is Ego Donor(5.9), a clip-up on the back side, facing Blazing Fin. It is sustained and fun...an honest-to-goodness 5.9!