Woodies on a SE is not good - its possible but tends to be very gusty/variable.
If you are desperate then its definately beach 1 or beach 2 only as they are roughly X-on. The north side is totally unworkable except at the very end of the spit which is then way too dangerous as its X-off straight out to sea


Possibly Safety Bay or Mandurah estuary but Im only guessing

The river has to be East or NE - hopeless on SE.