Mid-30s and Above Fishing Locations?

[LaxusLanverLais]

At 34 fullmoon sardines at Costa del Sol give over 2500 exp and the HQ ones over 11k EXP.....

I just went from 30 to 33 at this spot, and these numbers are correct. While the other fish gave lesser XP per level, the sardines stayed at an even 2500-2550 through those levels. Just my 2 cents.

EDIT: True, those only come out at night, so probably not the best grind location, but I liked the music and everything I needed was at hand there so it was fun for me to stay there