Different hobbies for different weather/seasons.
If I can't go out then I guess family history research. I have made quite a large family tree and have traced back many parts for many generations.
I used to work of the railway and am interested in trins etc and have a model railway, but don't use it (okay play with it) as much as I would like too, (That sounds like ED.)
Since moving from an appartment to a house I now have a small garden so that is kind of a new hobby, but being British everyone in the family in the UK has gardens so gardening kind of came naturally.
Have made a lot of basic furniture over the years. Beds, bookcases, tables, cupboards, desk etc, but now it's more just about
repairing things around the house. (I'm quite good with DIY and in the old place I fitted a new kitchen and bathroom)
I used to cycle a fair bit, just on a normal bike, but since hurting the base of my spine do much less.
And seeing this is HW I guess a guy can admit that he thinks sex is a bit of a hobby.
Alf