Gestalt, is there a reason for choosing Sunday/Monday for the event?
The low tide is not until 2:30 pm on the Saturday, doesn't that allow people enought time for travel on Saturday morning?
Wouldn't Saturday/Sunday get a bigger attendance?
People can choose to drive home on Monday if they wish, but if the event finishes on Monday evening then people must drive home on Tuesday.
I realise it's school holidays but realistically how many of us are still in school?
Wouldn't most of us need to be back at work on Monday morning?
(The obvious exception being Haircut

)