I was just about to renew my "Launching Permit 2021/2022" and I noticed that the Conwy permit didn't mention Anglesey or Gwynedd. Further investigation on Gwynedd councils site says their permit is valid for Gwynedd & Anglesey, no mention of Conwy. So it looks like the three councils have not agreed a reciprocal permit this year. That means either you need to buy two permits, or bin one all together - sorry Conwy it was nice knowing you
Just to make sure, I have sent an email to the Conwy Harbour masters office.