Aloha,
I have noticed that on weatherzone there are a few misplaced tidal location under the marine forecasts. Northern Bass Strait gives tidal information for Portland(should be Port Phillip Heads), while the Eastern Bass Strait forecast has Port Phillip Heads!
Also, just at a brief check the Portland high tide listed gives a high tide of 12.22pm, while the National Tidal Centre gives a time of 11.47am. Not only that the tide height given on weatherzone is 0.5m, while the NTC gives 0.66m!
It would be pretty dangerous for people boating around Port Phillip Heads based on the weatherzone info. Especially given the combined impact of incorrect times and heights(and locations). Slater and Gordon would have a field day;)
Cheers,
Alex