These are activities to take part in, they mostly don't involve wild releasing a book, instead, they are a range of projects – join in with a bookray, go book hunting, or design some bookplates.
There are also Challenge Pentathlon points available if you take part in artistic events
Remember to post in the forums AND PM Vekiki when you've made the release
Boxing bookring participation
Equestrian Show Jumping get wings!
Gymnastics (artistic) bookplate designer
Mountain Biking recruit a friend
Pole Vault go hunting
Shot Put wishlist RABCK
Tennis get swapping
Wrestling (freestyle) attend a meet
Challenge Pentathlon participate in 5 challenge events