Yeah, let's test ONE WQ (you travel from WQ to WQ, they are all over the place in the zone), starting from the HIGHEST possible place to conveniently glide down.
How about anything in Faronaar (Azsuna). There is a flight point even, but nagivating in that little shitty island is a nightmare. Mobs are packed, the green goo/terrain near it is placed in a way where you simply can't jump out of it sometimes, so you end up dying in the goo, running from million mobs, desperately trying to get out of the green shit. It was my absolute favorite around hfc too.... (/sarcasm)
Getting to today's pet battle wq Chromadon (Stormheim)? Omnitron defense system is a good example too.
World quest "Assaulting the Haglands?" (Highmountain) Highmountain has more, oh for example from today "Gunksnout Infestation".
Valsharah the cleanse the nightmare quests near Shala'nir. They are literally next to the flight point, yet mob density and terrain terracing makes it extremely annoying. Getting WQs in the Thas'talah or near the Smoldering THicket area, even from Lorlathil............. Or the other side, anything near the Dreamgrove (fishing/pet battle wqs). That's a nice trip from Bradensbrook.
And now my main point. Let's get to the Smoldering Thicket from Shal'aran, and your whistle is on a 3 mins cd. Then let's go do a WQ in Thastalah (like the tree planting WQ).
Do you have the fishing artifact? Because you only gain waterwalking unmounted.... When you mount up, the waterwalking is gone.
Don't worry, you can't even do what he suggests