★ See our Story Walkthrough and Side Story guides!
┣ Unlock the Final Chapter and get the True Ending!
┗ Learn how to beat the Secret Boss!
☆ Easily farm Money, EXP, JP, and Octopuff Travelers!
★ Best Character Tier List | Best Secondary Jobs
☆ All Guild Locations | All Altar Locations

Underground Waterway is one of the Tunnel Dungeons in the Brightlands region of Octopath Traveler 2. Read on to discover the different chests in Underground Waterway, main quests and side stories that happen here, other points of interest, and a list of all enemies and monsters that can be found.
List of Contents
| All Chest Locations | |
|---|---|
|
Healing Grape On the south pathway before reaching the ladder. |
![]() Underground Waterway |
|
Protective Ring To the right at the end of the path at the start of the chapter. |
![]() Underground Waterway |
| Character | Information |
|---|---|
|
Benefit: ・Unblocks path to exit. Lookout Location: Found guarding the rails that leads to the exit. |
Path Actions Guide: All Path Actions Explained
| There are no known items of this type sold in this location. |
| There are no known items of this type sold in this location. |
| There are no known items of this type sold in this location. |
List of All Items, Materials, and Valuables
| There are no known Side Stories found in this location. |
| List of Chapters | |
|---|---|
Throne Chapter 1 |
Throne Anguis is a member of the Blacksnakes, a guild for thieves led by Father and Mother. With the looming threat of a possible traitor within the guild, Throne is tasked with killing one of the guild members, only to be set up. Tired of all the violence, Throne goes on a journey to find and kill Father and Mother to free herself from the guild. |
Throne Chapter 4 |
Throne's journey takes her back to New Delsta where she finds the truths behind the locked door in the sewers. This leads her to confront someone who looks like Pirro, except he might be more than meets the eye. |
Story Walkthrough and List of Storylines
| Enemy / Shield Points | Details |
|---|---|
City Ratkin I
(1 SP |
Vulnerabilities: (Dagger, Axe, Fire, Light) Drops/Steal: Healing Grape |
Pursuer Leader
(3 SP |
Vulnerabilities: (Axe, Dark) Drops/Steal: Inspiriting Plum |
Pursuer
(1 SP |
Vulnerabilities: (Sword, Dagger, Axe, Dark) Drops/Steal: Healing Grape |
Scaled Viper
(1 SP |
Vulnerabilities: (Sword, Axe, Fire, Light) Tameable?: Yes ┣ Strength: 1/10★ ┗ Prepare: Mountain Sausage x1 (Meat) Drops/Steal: Inspiriting Plum |
| Current Location | ||
|---|---|---|
![]() |
||
| Nearby Areas | ||
| New Delsta | - | - |
| - | Underground Waterway | Deserted Highroad |
| - | - | - |

Solistia Map and List of Regions
| All Solistia Regions | |||
|---|---|---|---|
Winterlands |
Harborlands |
Brightlands |
Toto'haha |
Wildlands |
Leaflands |
Crestlands |
Hinoeuma |
The Sundering Sea |
|||
Underground Waterway Guide: Chest Locations, Shops, Events



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