Thank you Mariusz,
Yes, there are beaches in North Macedonia!!!
There's no sea but they do have Lake Ohrid.
You have a lot of experience with beaches. You may have seen better ones but I know that some loved them.
I won't be able to show you pictures of the beaches.
But have a look here:
https://www.google.com/search?q=lake...V_enBE752BE752
Kind regards,
Paul