I have an ex colleague who became a good friend through a shared sporting interest.
We haven't worked together for years but, in normal times, continued to go to sporting events roughly once a month. These would often be a full day out, travelling quite a distance and a few drinks on the way home and apart from DH, he's probably now the friend I'm closest to.
We've always been careful not do anything that might be construed as "romantic" out of respect for our spouses.
I haven't seen him since February and there's no prospect of returning to the sport any time soon. We live quite a distance apart, so a few drinks together would mean public transport, which we're avoiding. Both have peole at home we're trying to be careful for at the same time as trying tonget back to some sort of normal life.
We've discussed things like a picnic or a walk but that seems a bit date-like. Are we over thinking this?
Who's got an idea for a very platonic, low risk way to meet up? Something that would be OK for appearances sake iyswim. There really is no risk of it being anything other than platonic, I think that would have happened in one of our boozy outings if it was going to 
Both in our 50s, if that makes a difference.