I am also in Ireland but I live in a suburb that is on the beach so we can go once we distance. I know nothing about where they live but assuming if it is in there area no issue.How the hell are they allowed go to the beach? I'm in Ireland and we still can't travel more than 5km, maybe it's different in the UK but seems very careless!
Even in the 2km restriction, I had the seafront, beach and St Annes Park in my 2km.