The cache is at the posted coordinates!
Welcome to Dee Why! Here you can swim, walk, admire views or find difficult geocaches. Clearly you're here for the last option.
To get to the start of the ascent park on the north end of the cliff, somewhere around the parking WP. Then go down to the bottom of the cliff and start walking to GZ. You will need to traverse some fishermans ledges to get here. From the first cache it should be plain sailing to here.
Check the images for a spoiler photo of the cache. It is a rectangular sistema in a cave on the side of a cliff. To get there you will have to pass the:
3 Trials
Trial 1: A 4 meter boulder to get up onto the platform
Trial 2: A jump across a chasm onto a ledge
Trial 3: A Tight crawl in the side of a cliff to reach a cave.
There is some pretty advanced climbing involved here, couple this with the height (around 10m) and this is a cache not for the faint of heart!
GLHF - GHHH