Chuka and Champawat
Look at the collection for it.
Maybe this will help
http://dulfy.net/2016/04/19/gw2-spirit-of-the-tiger-explorer-achievement-guide/
Spirit of the Tiger is something you’ll need for the shortbow, but I think the pair of tigers hunt is something different. At least while I was in Caledon for a tiger den in Dreamdark, the tiger hunt kept showing up as an event but by the time I got folks in Map to tell me where it was, no one was triggering it (I have not started the collection myself).
Otoh thank you for that link, Blude! I spent over an hour scouring TD for dens yesterday and couldn’t find the two there though I have all the other dens thanks to some work on my part and to joining with someone else who was also doing it so we could spread out the search. I’m going to try again without looking at the guide but now I know I’ll be able to zero right in on them if I get too frustrated.
The collection is fairly descriptive on what to do but I’ll explain it.
You go to Snowden Drifts and talk to the NPC by the bridge at the middle of the map. He’ll give you two recipes for you to craft with one being a journal. Fairly cheap with just elder wood and thick leather. You take the crafted journal back to the NPC to start the journey. Each time you complete an entry, check the journal to see what to do next.
Some things you may get stuck on is where to go when you first get to Diessa (look up from), In Lornar’s (you have to do a event chain), and in Snowden (An event with a mob that some people have had issues getting credit for by themselves).
The items for the rest of the collection are fairly easy to obtain without much effort. Most of your time will be spent completing that journal.
once you have Vol 1 just talk this guy … do as he says