That grub looks good enough to eat Ian
Our air draft on Lady Emma is 10’ 6” with the navigation mast down.
With everything up we need 13” clearance .
Realistically we can only get under the Yarmouth bridges on Spring tides at low water.
Neap tides are very touch and go that we will clear the bridges. As it is two hours-plus cruising at 5mph from Acle to Great Yarmouth, (yep, it’s about 10 miles) it’s a long way to find out you have to turn back doh!!!
I check tide tables and weather charts well In advance of any longer cruises.
Passage planning as best you can.
Good seamanship so they tell me