Walmart Discovered

Walmart Discovered is a small, obtainable stop with one resident, an NPC named Wren, and one rod for sale, the Superstar Rod. No price is listed for it, and no fish are recorded for the zone, so this is not a place to farm anything.

The page gives you only two hooks. Wren is the person to talk to, and the Superstar Rod is the item to look for. Since there is no catch table, there is no bait advice, weather window or season to plan around. That is also why the zone is hard to place in a progression: nothing here feeds your fish log, and nothing here changes how much you earn per cast unless the rod itself fits your build.

My practical suggestion is to treat the visit as a single-purpose errand. If you want the Superstar Rod, go to Wren and check what it asks before you spend anything, because the price is not documented. If you are trying to level up, earn C$ or complete fish entries, spend your time in a zone that lists fish. Come here for the rod, then leave.