I have seen a few people who have gotten to Lake Ere'Noru without flying (the lake behind Allerian Stronghold) to fish for Furious Crawdad and Mr. Pinchy, but I haven't been able to duplicate this feat (see here, here, here, and here)
I've found the path from the Arrakoa village to the lake, but I can't get over the last ridge to reach the lake. Some mention needing an epic mount, but I couldn't do it even then. Does anyone have more detailed advice on getting there? It's possible the terrain has been changed in a recent patch to prevent this. I also tried slow fall + rocket boots xtreme but couldn't get there...