Mr Kawasaki, originally you said that access was good 2 hrs either side of low water and now you are saying that 2 hrs either side of high water is advised, I know which I would do.
The original post came from a member that suggests he has a rib of about 4 mts in length why would he need a metre of water for that?
I said that the water gets shallow and suggested that if you hit the bottom you could always paddle and pull or push. There is always water as the river flows out to sea.
I should know I live at Borth-y-Gest which is a mile up the estuary and from my bedroom window even at low water I can see out to sea up the estuary and see a silver shivering line and I don't think it's sand!!
Finally what has the drying height of Snowden wharf got to do with anything?? if you launch on the council slip there is deep water to at least the bar by Borth-y-Gest even at low water.
My advice Phil18 is to go and have a look at the muddy mess at Port Penrhyn and then the lovely sand at Porthmadog and question Mr Kawasaki and his information!!