An easy one to get, if you can find another player online!
I used the mission Solitary Survey in the lost colony area to get this one but it has been pointed out in the comments that New Blood in Coral Lake West is also an another
Both have 150 beacons to collect per run (approx)
I recommend using the max level snow wing tempest for its agility stat.
The reward is a food item which gives another dragon the Hrunting skill.