The area is access sensitive
Total walk-in is about 2100 meters. It should take around 25-30mins.
Walk to Sassies (1km). When you reach the 4x4 track in front of Sassies turn left and continue for another 800m ( around 10 mins).
When the track turns to the left and heads up a sandy hill look right there will be a large slab coming down the hillside with some prominent boulders near the top, this is Lorraines.
There is a faint cairn where the path will eventually form up. It's about 250m uphill hike to the boulders.