Local/regional/provincial politics never interested me but when I was working, I was on the board of several non-profit community agencies -mostly dealing with issues around poverty, homelessness, food security, etc. That was quite gratifying, although I didn't really like board meetings and whatnot, and I chose to leave the advocacy part to people who were more vocal and articulate than me. But I really enjoyed the hands-on part of the job and would often work for free when we were short-staffed. I would have kept going if I didn't retire away from Canada. There was of course a political side to that involvement but nothing like left/right partisan politics as we know it in the USA and Canada.
I was also on the board of a federal environmental agency for a decade before I retired three years ago, but I stayed on until the end of my mandate last spring. This is a non-partisan, apolitical board where science and evidence prevail, and any conflict of interest and potential bias must be declared so it fits right in my alley. I didn't think I'd be reappointed but I was asked a few months ago to stick around for another 3-year term to finish off the review of the final closure of a big oil and gas legacy project that I had started before retiring. The workload is not huge, we have fantastic staff who do all the groundwork so it only requires a couple of meetings via Zoom and a few days a month of actual reading. Board pays for my travel to attend in-person meetings twice a year. Our upcoming meeting was to take place this week but it was unfortunately canceled due to the raging wildfires that caused the evacuation of entire villages and towns. The next meeting is in December, the coldest time of the year, but I am seriously over-excited to go back. I love this side gig, it keeps me involved in my old field, and I can mentor and provide guidance to younger environmental scientists. I am also the type of person who gets very easily and quickly bored so this keeps me on my feet. Bonus, the pay is not bad, especially for the amount of work, and I can let my stash grow for a few more years.