If you have a 4WD and heading east, take the road less travelled instead of the highway!
Starting at the pin drop, we drove from Bremer Beach all the way to Tooregullup Beach, along Trigelow Beach, to Point Anne Fish Hole, all the way to Point Anne!
Definitely recommend lowering the tyres to 20 psi, as the corrugations are pretty gnarly and the sand is soft - but my goodness it was stunning!
From Point Anne, you can drive along the (VERY corrugated road) back to the highway.
We attempted to drive along the following beaches to Point Charles, but unfortunately the tracks are all washed out, so save yourself the hassle.
Unofficial - but you probably stealth camp along the beaches here, just be careful of the tides!