Th caverns have 2 different tours .
1. Crystal palace tour
2. Horsesshoe lake tour.
total length of the tour = 3.25 miles
let
Horsesshoe lake tour = x
Crystal palace tour = 2x - 1/2
Therefore,
Horsesshoe lake tour = 1.25 miles
Crystal palace tour = 2(1.25) - 0.5 = 2.5 - 0.5 = 2 miles