Gobblin' with Glublurp

1.) Find a [object=454729] in the Shadowvein Extraction Site in the Ringing Deeps. They're small blue crystals
2.) Head to the small pond just northwest of the Extraction Site to find an [npc=227138] flying around, they look like small purple fireflies
3.) Bring the Glimmerling to [npc=227132] at the Waterworks, right above the "K" in Waterworks on the map, to get the achievement

Special thanks to tfmonk on the Secrets Finding Discord for solving this!

/way 60.0, 41.41 Glimmering Crystal
/way 58.36, 33.60 Ethereal Glimmerling
/way 44.3, 50.2 Gluglurp

As everyone else pointed out, use steady flight. However I did this after the Undermine patch and I think the cords became different.

The one crystal I found was here /way 56.87 40.45
Moths were at /way 53.95 33.14
Glug is at /way 40.17 50.23 (Still above the K in Waterworks)

Hope this saves someone some time!

Use Steady flight instead of Skyriding, works 100%