Complex sentence: The outward walk consists of about 4--5 hours hiking until the last ascent where it is a scramble to just below the peak where you are directed to a slightly perilous path that winds its way up up to the summit.
Split into simpler sentences: The outward walk consists of approximately 4--5 hours hiking until the last ascent where it is a scramble to just below the peak. From there, climbers are directed to a slightly perilous path that winds its way up up to the summit.