Doing a little consulting & social activities within the area and society (90 days a year), just to keep the brain cells working. Some volunteering (therapeutic horsemanship non profit NGO for Special Needs kids) and little bits of a lot of other stuff too politically and socially for upliftment of downtrodden.
Before you retire, make sure to read the book
“The Joy of Not Working: A Book for the Retired, Unemployed and Overworked” by Ernie Zelinski.
The chapter on the leisure tree is really good at helping plan out the ton of new time you’ll have available. It makes the great point to have a plan and schedule for your activities, to keep from wasting time, UNLESS wasting time is what you want to do! always at your service 24/7 for social cause and grievances ...
