This WQ located at Ruptured Lake within Azj-Kahet is one where you can fly through one of several glowy yellow circles and attain a buff that enables you to fly through suspended bombs for a percentage of progress.
I managed to reach 65% and then the buff ceased to apply. WQ is still possible but only by landing and grinding through various mobs for 2% each. Entire bar used to be fillable by using the holy lance and clearing bombs