I couldn't find you either, and I looked for you all over the dang place. The portal system is great, but the map gets confusing at times.
Anyway, I completed the quest. It's bugged, because you can accidentally run into the robots from some other quest and get auto-killed because they are like level 40 LOL. That was just icing on the cake.
I figured it out though - I bypassed the fish, climbed down some rocks, carefully avoided falling into the lvl 40 robots, and finished it.
The water combat is just ridiculous. It is annoying as can be. The game is great, though, it just needs some time. The dynamic world quests are fantastic.