Mark _australia said..
I thought crabbing was done in shallow water (so the float is not far away from the net unlike craypots with heaps of rope on the top) and nets pulled every half hour or so... or do you 'tothersiders do it differently
Anyway.... weed fin Macro.
Yep, weed fin
If they've been stupid enough to use a clear cordial bottle for a float (which is barely visible), reel it in, chuck it on the front of your board and put it onshore somewhere, its a hazard to navigation.