These guys are amazing to watch. We took a drive down the coast, near Margaret River, to Prevelly. It isn't really suitable for swimming but there is a small sheltered area, the rest is wild and fab for finding a spot out of the wind to watch the surf come in. Just a bit further to the south is Gnarabup, there were plenty people swimming here, or on wave riders/boogie boards, but it was still a bit too rough for our trainee surfer chick/dudes so we didn't stay long. Beautiful day out.