Can anyone give me the definitive answer to this please? I have been given many different answers from 1.5hrs -0.5hrs before highwater, and how long is slack before it turns.
Seeing as this is home waters for you guy's, 'll ask here!
[Matt , nothing like a good old thorny question on Boxing Day to revive the ailing grey matter! Slack times are a science of their own! I took a look at the PADI website for the answer, it's crammed full of usefull information dive planning as you would expect (;-)) , so check out THIS!]