Quite a few of us have multiple Elite Specializations we'd like to unlock, and running characters through the hero challenges in the Heart of Thorns zones is a pretty fast way to do that. I recommend experiencing the map first without any guide, hence the [Spoiler] tag.
I did the full exploration of Verdant Brink first, but now I have the hero challenge unlocks on repeat. You can get 80 hero points in just a couple hours, with just the gliding mastery! I put my notes into a stylized map format to share with you.
Hero challenge summary: Verdant Brink
- 4 "Commune" challenges for 40 hero points. These are easily solo'd
- 4 "Combat" challenges for 40 hero points. Best in a party.
- 3 "Gated" challenges for 30 hero points. You'll need to unlock a mastery to complete these, and all involve enough combat to make a party worthwhile.
- Total: 110 hero points
Dulfy guide (up to date): http://dulfy.net/2015/10/25/gw2-verdant-brinks-hero-points-guide/#4_Nuhoch_Wallows_Hero_Point. This includes the workaround for the Poision HP.
NOTE: image below is wrong. The HP marked "Wallows" actually requires Nuhoch 5 (yikes!).