Northern Budawang National Park multi-day adventure

A four-day adventure in the northern section of the Budawang NP connecting old previously tracked routes.
Day 1 we will have an early start to drive to the trail head at Sassafras carpark, then walk south along fire trail and foot pad to Folly Point for views across to the Castle.
Day 2 will be off track traversing Watsons Pass, looking at Munnuldi Falls, crossing Sluice Box Falls, passing between Mt Elliott and Sturgiss Mountain, and camping in a camp cave on the south-west side of Sturgiss Mtn.
Day 3 we will investigate a south-western route up onto Sturgiss Mt. and across to Dark Brothers Cave, hike into and through Hidden Valley, to join the Endrick River fire trail and head north to Piercy's Clearing where we will camp by the Endrick River.
Day 4 we will head east along Endrick River gorge, climbing Battleship Rock, then continue east to join the Endrick Fire trail and back to Sassafras Car park.
This walk is mostly offtrack, exploratory following old tracked routes and field notes, and will involve pushing through patches of thick scrub, rock scrambling and basic rock climbing. Participants will need experience in multi-day backpack camping and walking in similar terrain. The number of participants is limited due to camping spaces at Folly Point and camping caves. In expressing interest in this walk, please indicate your experience in similar multi-day walks.
GPX file and hiking route plan is available for valid walkers.