Activities that support the path to the Knighthood

Important physical activities:

Budo Martial Arts,
Other Eastern Martial Arts,
Combat or Fighting arts (European, American and Israeli Martial Arts, easier path with somewhat better possibility to end up a killing machine - something we ought not to seek as a basic value),
Ancient European Martial Arts,
Body Building and other Gymnastics,
Aerobic sports, such as swimming or hiking or ball games,
Archery,
Shooting,
Hunting (if you also use all the meat you hunt! In my country this is even altruism in some way, since there is sometimes too much moose, and that causes much lethal traffic accidents),
Pathfinding,
and much more!

Some other important hobbies:

Chess playing and strategy games,
Good spirituality which includes prayer, meditation and Bible study,
Basics of one's national and wider cultural (i.e western) history and culture,
Geneology,
Books of leadership and also of obedience, classics
Learning about disarming explosives,
First Aid skills and wider healing skills