Cycle:
5.7 miles each way
581m ascent on way up
222m ascent on return
So altogether between 1:30 and 2:00 for return trip
Ascent:
2 miles each way
519m ascent
Naismith 1:30 ascent, plus just under an hour descent
So round trip no more than 4:30. 5:30 with breaks and photos.
