if you are fishing bait then you'll clear the weed easily with a half-decent cast. you will be out on clean sandy ground then. but the tricky bit is getting the gear (and fish!) up above and over the weed on the retrieve, it is by no means impossible but defo even harder at low tide.
of course, ou can opt to fish in the weed too if you wish, or over it with a float.
ive heard of fish being caught from there but the last time i fished it i could only manage a few doggies.
as cathal says, spinning is possible at high tide when the water is up deep enough over the weed.
here's a link to the debate of the safety of the place:
viewtopic.php?f=12&t=35813&p=283241&hilit=speed+calming+ledges#p283241i couldnt highlight safety enough! (associated to fishing from the road - as you will gather from the link
go for it. let us know how you get on......