Diving spots and fish traps, explained

The two passive fishing systems: what dive spots give you for free, and how fish traps catch fish while you do something else.

The short answer

Dive spots sit in rivers and the ocean, cost no stamina to pick up, and yield shells, clay, glass, frogs and artifacts. Fish traps are placed objects that catch a small set of fish over time. Both are the only source of several museum items, so they are worth checking daily.

Dive spots: free pickups in the water

Dive spots are glowing pickups near the water. They cost no stamina; walk up to collect them. Each active fishing spot spawns one or two dive pickups a day, and the map has 34 active fishing spots. The fishing guide has the full spot list.

Dive spots can contain:

Shells and beach goods, including the pink scallop, sand dollar and similar items used in beach forage sets.
Clay, glass and fibre, which you can otherwise collect by breaking rocks.
River and ocean creatures such as frogs, crayfish, freshwater oysters, clams and the occasional fish.

Dive spots contain about 42 different items. Several, including the frog, oyster and bullfrog, are hard to find elsewhere. The fish page marks each item’s retrieval type, so you can check which museum slots require diving.

Fish traps: passive fishing

Fish traps are placeable objects that catch a fixed set of fish over time: amberjack, blue crab, hake, sea urchin and the bait thief. They continue working while you are elsewhere, so you can collect those species without waiting beside the water.

Two practical notes:

Check traps daily. They hold a limited number of catches and stop when full.
Bait is the input. Traps consume common bait, which rods also use. The fishing guide explains bait for both methods.

Why these two matter for the museum

The fish wing and the ocean forage sets both include items that only come from dive spots or traps. A player who fishes but never dives will find the fish museum stuck at a specific set, and the missing items are almost always the dive-only ones. The museum guide lists every set and its members, so you can check which dive or trap item you are missing.

A daily diving routine

Add this to the end of a fishing session:

Walk the riverbank in town and the beach, grabbing every dive spot you see.
Collect shells first because they are the only source of several forage items, and forage respawns daily.
Drop a trap in the water at the start of the day and collect it at the end.
Bank any new item for the museum before selling (museum guide).

Diving takes no stamina or timing. Check the water as you pass, since dive spots are the only way to finish several museum sets.