the walk to lassie's wall is fine. you are probably thinking of harlequin access. the bottom end of lassies wall that you first walk past is low angle juggy rock, good for kids.
In terms of self belay TR, throw a rope down whitewater wall and you can do baystone blues 17 and the 19 next to it from the same anchor (with maybe a directional or 2), both great pitches |