Iv brought it up a few times, if fishing had a "dungeon" where essentially, you fish for key peices and a map, a week-long (from the point of finding the map) "dungeon" appears where you choose fish, or fight instead of horde boss ect.
Fight puts you in a abridged 5-10 floor dungeon filled with sea themed enemies, fishing dungeons "fight" has similar yeald to deep dungeons but better quality rolls, instead of 1-2 and the rest common, all rolls will be a famed or greater rarity, but will likely just be junk as usual lmao.
Fish opens you into the OG fishing bubbles minigame, where you fish until you find the boss monster of the dungeon.(ending your fishing encounter) Fishing for the boss, yealds literally anything eod(VERY LOW CHANCE) or random items as "junk" fish are bigger, and the boss itself when killed drops drasouri statue or Ulthier statue.
Drascouri Relic increases the chance of finding wells for 2 hours, also inc crit chance by 10%(stacks with thor)
Ulthier Relic reduces status effects by 10% and increasing coral gains by 5-25%(randomly) for 2 hours.
(Relics are essentially statues that are in inventory and can be used at will. Compared to statues that have set times the second they are obtained)
The dungeon could be using key & map in monuments guild forms a Dunegon Odie's Well. Once cleared the dungeon is over and must be fished again next week.
Or finding the map can spawn that dungeon into the world map for a week and players must walk to it to acess it. Once cleared the dungeon is over.