BLUEMOMENT

My one night in Canna was in a gale and we used a fisherman anchor. I'm pretty certain that cut through the Kelp and we reasoned that if it did drag it was spikey enough that it would probably catch something before we'd gone far. (We didn't test it with reverse. )

There was one other boat in there and AFAIK he didn't drag with a conventional anchor which came up with a ton of kelp on it.

Noisy place, but I was so knackered after the battle of getting there across the Minch I slept very well.

Nick wrote:.
many who think they are securely anchored in Canna are in fact attached only to large balls of kelp

I have a vague memory - like most of them these days - of AppiDaze in Canna Harbour about a decade ago when, in an overladen Rival 34 wi' 240' of chain, I ran that lot out, tied a couple of extra ropes on, and took a turn around yon twee wee kirk up on the shoreline. Didn't budge all week.

Mark wrote:My one night in Canna was in a gale and we used a fisherman anchor. I'm pretty certain that cut through the Kelp and we reasoned that if it did drag it was spikey enough that it would probably catch something before we'd gone far. (We didn't test it with reverse. )

There was one other boat in there and AFAIK he didn't drag with a conventional anchor which came up with a ton of kelp on it.

Noisy place, but I was so knackered after the battle of getting there across the Minch I slept very well.

So long as your anchor has a full TON of kelp and plenty chain out - you may well get a way with it