6 years ago I used my 22 seasport for a bear hunt. The bay we were hunting is large, but extremely shallow and glacial silt bottom. The only protected spot was behind a small spit. At low tide the spot has 6-8 feet of water, with 20+ foot tides. The tides really rip in this area.
We had three occasions of a drifting anchor, including a fun filled evening of sideways rain and pitch black darkness. I know I didn't have enough chain, 20 feet for a 22 foot boat, and I wasn't able to have proper scope as I wanted to be tucked in behind the spit.
We saw two other boats anchored in the head of the bay, not protected, but with no problems.
Heading back there this spring, in a 24 foot boat. I can add as much chain as needed. Questions about proper scope given this scenario ~ 5-1 or 4-1 with all chain? What have you found to be the best mud anchor? I've read a couple posts about a utilizing a system for shore anchor as well.