Charles,
Overseas visitors should assume no travel to Ireland this summer. Everything is closed for now. Restriction lifting will happen small bit by small bit and we have already been told it will be at least September until some restrictions are removed.
For most of the last year, we have not been able to move outside our home county (right now it is 5km) and the government is currently tightening up on incoming travel by introducing mandatory quarantine in central hotels for certain travel types.
As for Scotland, I am already in the process of postponing a golf trip at the beginning of June. And I can get there by land and sea through the North if I really want to.