I know everyone has been looking for the next anchor
Got a tidal related question.
I will be very likely cruising in Brittany soon. Some areas there have up to 13m (=39ft) tidal range.
Bottom is very often rock strewn with sand patches.
Here's the scenario:
You arrive with say 7m under the keel
and cannot clearly see the bottom.
The spot you anchor
will fall a-dry in the tidal cycle.
Not areal worry as your multihull
(or lifting keel
mono) can settle relaxed on the bottom.
You throw the anchor and pay out about 4-5 times the max waterdepth for the location as rode
Let's assume 10m max leading to 50m rode
The anchor settles nicely, because it hit a sandy patch by luck.
Your a single-handed exhausted and happy to sleep a deep sleep.
Few hours later the water
falls and with falling water
your boat swings around and moves aft (= result of depth
reduction with constant rode length).
How can you make sure you do not fall a-dry on one of the few rocks strewn onto the sand patch by the almighty?
Just relying on the charts
bottom indication seems not too clever.
Let's assume there are other boats at anchor too.
Do they all use huge swinging mooring
How would you as a very experienced tidal area captain
One approach would be two anchors I guess.
in deep water is a thought but not the solution I am after.
Looking forward to them.
Many thanks & Merci!