Trying to plan excursions.   Princess offers one for $50 that allows 3.5 hours total time, and I think we may prefer touring it on our own for a more relaxed visit.  I know from past travels that we tend to study exhibits in more depth and are slower than some.  So, I'm looking for options to/from Mendenhall.   City bus drops passemgers 1.5 miles from the visitors center, and I want to save my walking time (somewhat limited) for exploring trails, etc.    Does anyone have experience in