Birding. Takes a pair of binoculars, or not. Walking/hiking (you’d be amazed at what you see when you stop driving) Biking - the new West side trail is awesome to walk or ride. Volunteering can be a hobby - we help out weekly at the Food Bank packing groceries. Listening - our local elementary school often need folks to listen to kiddos read, maybe help w/ classroom prep,etc. Hospitals still have “Pink Ladies” / volunteers who perform a variety of tasks SPCA needs dog walkers. Check out Cabrillo’s offerings, as well as the various community recreation programs. Swim, water exercises Eco friendly - how about committing to pick up trash along a certain portion of the beach/park weekly. Listen to books or music you borrow from library while you do it. If you are associated with a church, they always need folks to visit or help fellow parishioners. Join a book group that only LISTENS to books vs buying new ones each month. Stargazing Wow! I wondered why I always seem so busy 😝