There is a quest in Bastok about getting Siren's Tear at the Gustaberg River. Question is, on the map, there seems to be 2 rivers. Which one is it? Also, do I fish for it or do crabs drop it? Thanks!
it's in the river closest to the entrance to port bastok, the little tiny river.
Just run around it and press tab for F8 and you'll find a ???, inspect to receive sirens tear.