Thanks for the info Dave,so does that make them a lot later than usual?
I can remember catching them at Benlech on the May bank holiday for years on the trot.
If all goes to plan,I'll be out on my boat in the straits at Caernarfon on Friday with my brother,
so I'll put in a report if the Mackerel are in there.
Going to cruise the straits to the bridge and back,( not chancing the Swellies this time round)Haha.