If you are like me and haven't been to that southern portion of Shadowmoon Valley, then know that you can reach the enchanter by roads and paths.
From Embraari Village, go south to The Nightmarsh and the Twilight Glade fp. South of there (at 40,58) take the left fork which will promptly turn back southward. There you will have the one dodgy area, with mobs on or very near the path, but I didn't see any not 90-91. The enchanter is right on the coast and for the follow-on quest the correct bubble is well marked and has a green nameplate.
(BTW, if you need Sea Scorpions, there are a number of pools that spawn just SW of the enchanting quest location around 76,51 mapped actually in the Spires of Arakkoa area. There are mushroom caps that afford fishing spots and I did not encounter any hostiles in that area.)