guess that depends on what you mean by slalom?
If you are a racer, you need to sail well in chop, so is that what you're looking for?
If in fact you want to get out of the chop, the water at Mandurah can be flatter. But not so good this year as there's not so much weed.
But the flatter spots are shallow and there's still weed around, so pointer fins are far from ideal

AUS1111 said..
Port Beach is awesome on a slalom board in a seabreeze

Easy enough to get out of the shore break? I want to get out on the ocean more now that Melville has become so popular with the wingers.

The hidden Gem is Coogee Surf Club. Clean ocean winds, and range of water states from dead flat woodies speed runs to building wind chop the further north you go. This is where a lot of the kite racers launch from. Just missing the rolling swell lines of Port beach, but on the positive no shore beach issues.
Just have to watch the fishing lines from the guys fishing off the jetty, and stay away from the dive wreck / exclusion zone right up near the northern rock wall. Otherwise the whole bay is your play ground.

zemax said..

Easy enough to get out of the shore break? I want to get out on the ocean more now that Melville has become so popular with the wingers.

It usually is but if there is swell and it's from the right angle it can be tricky. Rule of thumb; if people are surfing, there might be waves

Besides the beautiful aquamarine water, the thing that makes Port Beach such a great spot is that the swells seem to line up into big long troughs a lot more than at other spots along the coast. My best guess is that it's because the sea floor is very flat there. It means you can still go pretty quick even though you're out in 1-2 metre swells. A few guys have done 30 knot nautical miles, which is not what you'd call hanging around when in open water.

Busselton during summer sea breeze. Log runs no congestion but off shore wind. Australind on winter westerlies is great. Long runs and a variety of water conditions. Pointers ok as water is deeper. WeedSpeeds fine too.