STRANDED / HIDDEN ENTRANCES
2 entrance records. Keep the hatch, its contents and nearby notes separate.
CODE / ENTRANCE / ACCESS
Both entrances belong to the River region in this guide. Copy the full four-digit code from its card and open the matching map record. The checkmark records the bunker opening, not every collectible inside.
GRID 631, 127
Keypad in the farm field.
Access: Open the hatch; check the radio desk.
Clue: 10 + 20 + 100 + 200 = 330; enter 0330.
Contents: Supplies and a second bunker note; no yellow-crate credit reported.
GRID 615, 169
Riverbank hatch below the bridge. The entrance is reported at 615,169; the nearby interior crate at 616,168.
Access: Find the hatch by the cliff.
Clue: River checkpoint numbers 1 + 2 + 5 = 8; enter 0008. Some guides call this an outpost count.
Contents: Yellow supply crate and bunker note.
The Farm Field Hidden Bunker entrance is recorded at 631, 127 with code 0330. Its access note is: Open the hatch; check the radio desk. Match the farm-field keypad and hatch before using the digits. A coordinate is a reference to the recorded location, not a floor plan or a tested approach route.
The recorded clue is 10 + 20 + 100 + 200 = 330; enter 0330. The total is written as a four-character keypad entry; keep the initial zero. This page uses the same code as the Stranded code guide, so copying from either page should preserve the same characters.
There are 2 named Farm Field note records at the same reported grid: Farm Field Hidden Bunker Note 1 (keypad top) and Farm Field Hidden Bunker Note 2 (radio desk). Opening the hatch does not mark either note as read. Use the full note checklist to review them by their own names.
The Farm Field bunker record reports supplies and a second bunker note; it has no yellow-crate credit reported. Do not use its opened-door check as evidence that a yellow crate was collected. The crate checklist records caches separately.
The Island Hidden Bunker entrance is recorded at 615, 169, with code 0008. The description places the riverbank hatch below the bridge, and its access note says: Find the hatch by the cliff. Use the hatch record when you need the entrance.
The Island Bunker Interior crate is a different record at 616, 168. Its instruction is: Descend through the bunker hatch. These two grids describe an entrance and an interior cache; selecting one is not the same as completing the other. After opening the bunker, check the crate separately when you open it.
The Island Hidden Bunker Note is recorded on the hatch wall, at the entrance grid. It also has its own check. A full bunker-opening counter can therefore coexist with unfinished crate or note records.
The Island Hidden Bunker code is 0008. The Small Island Container uses 6789 and is a different container record. Match the named entrance and access description before trying a number. The word “island” alone is not enough to identify the intended lock.
The existing records do not establish a code-change history, a guaranteed retry or reset procedure, or whether a particular update changed these locks. A failed entry alone is not proof that a code changed. There is no verified replacement code to offer here; the cards keep the current recorded values until a correction can be assessed.
Use the full note checklist for these hidden-bunker documents, the yellow-crate checklist for caches, and the Stranded walkthrough to group the existing searches by region. The Bunker-area notes guide covers the separate Bunker objective area. The moving-crate guide covers the freight train and patrol truck, whose missing fixed pins have a different explanation from a bunker entrance.
This guide covers the 2 bunker-type entrance records in the current dataset, rather than claiming to inventory every underground room in the game. Checkmarks share the same stable IDs across this page, the code guide and the map, and stay in this browser. They do not modify the game save or award an achievement. The location information comes from the site's existing published-source records and is not a new firsthand gameplay test.
