"I had it in the same pocket as my fishing bait"

Bob lost some item and when I ask for a hint, he says, "I had it in the same pocket as my fishing bait." I've checked each of the maps—where is the item?

screenshot


Solution 1:

Usually, if the hint points to fishing/water, the item in question is found by fishing. The shadow looks like normal fish, so you just have to catch a few fish in the river/at the beach until you get the lost item.

OP image edit:

looks like a normal fish but it's a jar