Ok. So forget carbon foot print and covid as this is just imaginary fun. Or saying it's a stealth boast. Anywhere, including UK or childhood holidays.
If you was able for one day to go back to your favourite place and do your favourite thing. What would it be?
Mine would be Hong Kong. For so many reasons I doubt I will ever go again.
I would order rice for breakfast as eating anything else was a ball ache. I would have a wonder around the park watching people do the group exercise then go and the escalators that dont really lead to anything much. Round the botanical gardens. Go up Victoria peak. In the evening get the Star ferry to the markets. Then mooch around the shops at midnight. Star ferry at the markets is one of my happy places.
If not there then Torquay when I was a kid.