Tenaya Peak via Northwest Buttress 5.4YDS, If you are looking for a "quick sprint" slab free-solo then this is it! 
The basics: 
- Start at the little pull off along beach at the Northeast corner of the lake. (You can start at the parking lot just a tenth of a mile further too but running along the beach with a view of your whole climb above you is just so much more aesthetic but perhaps slower, your call) 
- run along the beach until the picnic area then spot the faint climbers trail along the creek turn left l, away from the lake, to follow this. 

https://www.visitvictoria.com/regions/gippsland/things-to-do/outdoor-activities/walking-and-hiking/south-gippsland/wilsons-promontory-southern-circuit