Paddlecraft have this:
www.transport.wa.gov.au/mediaFiles/mar_B_PaddleSafe.pdf
This does show 400m as being significant from their point of view.
I'll also contact Transport WA and see what their response is.
Rather than everyone asking the police, FPA and DoT, it might be better for a coordinated approach through WAKSA. If everyone asks, DoT will immediately think there is a big number of kites >400m from shore and start to introduce rules that arent needed or required.
Help WAKSA help you
Good idea Brooksy. I had already queried DoT, and this was their response:
______________________________
Hi Jim
Kiteboard are not classed as vessels as described under the Western Australian Marine Act 1982. Therefore there are no safety requirements you need to adhere to under this legislation. If you were planning an aquatic event with these craft you would still require DoT's official approval as it is an organised event and we are giving permission for the use of that water space.
From what you have told me below it is a social event and you are taking safety precautions and have a communications plan with radios and mobile phones which is great to see. The department has no objections for this activity to occur and would recommend that you clearly monitor the weather and pick a suitable day to carry out this activity.
Good luck and I hope all goes well.
Regards
Simon Miller
Supervising Marine Officer | Marine Safety | Department of Transport
I also already asked Cockburn Rescue for their advice in this regard, and will post once I receive. Then I'll compile it and summarise the advice into one place. Including handing it over to WAKSA.
Should be useful as a kind of FAQ for those wishing to interact with shipping lanes, distance from shore, etc etc.
Timing: This coming weekend is all red arrows, next weekend is Red Kite downwinder, so likely this can be on the weekend after, wind allowing.