I tried Ocean Fishing the other day, since getting 8000 points at it is worth 50 irregular tomestones. First try I got about 6000 points using just the versatile lure, and earned the Major-General minion (adorable shark with legs). Second try I used the recommended baits and got 9500 points. It helps I was already FSH90, of course. It's apparently fairly good for leveling if you're not already at 90, to judge by the leveling alerts around me. On the down side, it only runs once every two hours realtime, making it a touch inconvenient. Also, everything you catch is L1 so you can't really advance desynth skill, and the main special drops from desynth are ocean-fishing-only bait. (Nothing seems to have any use beyond a few that can be put on prints or in aquariums, nothing has recipes attached.)
---Dave