Re: Crossing the sandbar at Harrington Harbor North, Deale
We've done it once or twice on my buddy's C&C35 MkIII (with centerboard). I think he draws close to 4' with the board up, and he only does it at high tide.
I think it's safe to give it a try, but the first few times especially, I'd proceed slowly, closely monitor the depth finder, and only attempt it at high tide.
S/V Old Shoes
1973 Pearson 30 #255