Q:
Quest helping orphans from letter
It’s a kitten conspiracy. Kittens gonna be kittens. All is vain!
A:
You don’t have to do jumping puzzles. But you need to have access to the multiple types of chests found in certain zones. Jumping puzzles just are one of the easier ways to guarantee a chest the end.
For example you need a plant chest from Sylvari zones. Asura chest from Asura zones. Orr circle chest from any Orr zone, etc.
The wiki doesn’t list all the possible chests. But there are some hidden around zones for the most part. http://wiki.guildwars2.com/wiki/Warming_Grawnk%27s_Heart
Doesn’t list what kind of chests are what. But heres a list of open world chests: http://wiki.guildwars2.com/wiki/List_of_basic_chests