Underground Map Guide — Navigating the Depths with Lightroots & Landmarks

The Depths is the mirror world beneath Hyrule — a pitch-black underground expanse covering the entire surface map in reverse. It contains Lightroots, Yiga Clan outposts, unique armor sets, boss-tier enemies, and the only source of Zonaite for upgrading your Energy Cells. Navigating it blind is miserable. Navigating it with a system is efficient and rewarding.

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Quick Stats

| Stat | Value | |------|-------| | Total Lightroots | 120 | | Total Depths Area | Mirrors all of Hyrule Surface | | Primary Hazard | Gloom (reduces max hearts) | | Gloom Cure | Sundelion dishes, Lightroot activation, surface rest | | Key Resources | Zonaite, Large Zonaite, Poes, Depths armor sets | | Darkness Hazard | Complete darkness without Brightbloom Seeds or Lightroot activation |

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Lightroots vs. Shrines — The Mirror System

The most important navigation insight in the Depths: every Lightroot corresponds to a surface shrine.

• There are exactly 120 Lightroots and 152 shrines on the surface, but 120 of those shrines have a direct Lightroot counterpart
• The Lightroot is located directly below its matching shrine on the surface
• Lightroot names are anagrams of their matching shrine names (example: Iayus Lightroot = Susai Shrine above it, reversed/scrambled)

Practical Navigation Use

When you need to find a specific Lightroot:

1. Find the shrine on the surface map
2. Drop through a chasm nearby (or any chasm in the same region)
3. Travel in the Depths toward the map coordinates that match the shrine's surface position
4. The Lightroot will be directly below

This turns the Depths from a featureless void into a navigable grid — you always know roughly where you are based on which surface region is above you.

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Entering the Depths — Chasms

Chasms are the entry points from the surface to the Depths. There are chasms in every region of Hyrule — look for cracked, dark circular holes in the ground, often accompanied by gloom seeping upward.

Safe Chasm Entry

• Equip Gloom resistance food before jumping — your first steps in the Depths will be on gloom-coated ground
• Have Brightbloom Seeds in your inventory — throw them down before you land to illuminate the landing zone
• Use Recall on the falling trajectory if you want to slow descent (rare use case — most chasms are safe to freefall with the paraglider)
• Note the surface map coordinates before dropping — this tells you which Depths zone you've entered

Confirmed Major Chasms

• Hyrule Castle Chasm — center of the map, drops into the Central Mine area near key story content
• Akkala Chasm — northeast, leads to Akkala Depths with Igneo Talus and Zonaite deposits
• Hebra Chasm — northwest, cold Depths zone (no cold resistance needed underground)
• Faron Chasm — south, leads to Faron Depths near Yiga Clan encampments
• Eldin Chasm — northeast, volcanic surface but Depths here are standard temperature

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Gloom — The Primary Hazard

Gloom is the Depths' environmental threat. Walking on gloom-coated ground reduces your maximum hearts temporarily. If all your hearts are consumed by gloom, you die instantly — gloom-reduced hearts cannot be recovered by eating food during combat.

Gloom Rules

• Gloom reduces your maximum heart count (shown in red outline on the health bar)
• Hearts lost to gloom can only be restored by: activating a Lightroot, eating Sundelion-based food, or returning to the surface
• You can still eat normal food to recover your remaining non-gloom hearts
• Gloom on enemies (Gloom Hands, Phantom Ganon) transfers to Link on hit — same mechanics apply

Gloom Avoidance Strategy

1. Activate Lightroots immediately — Lightroot activation restores all gloom-reduced hearts and clears the local gloom from the ground around it
2. Stay on rock/dirt paths — gloom concentrates on flat ground near enemies and ancient ruins; elevated rocky terrain is usually clean
3. Brightbloom Seeds light your path — you can see gloom patches before stepping on them in illuminated areas
4. Sundelion dishes before boss fights — pre-eat to give yourself a gloom-recovery buffer (1 Sundelion Elixir = 3 gloom hearts restored)
5. Zonaite armor — the Depths armor set has some gloom resistance; worth equipping for extended Depths runs

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Mapping the Depths Efficiently

The Grid Approach

The Depths map starts completely black. Every Lightroot you activate reveals a portion of the underground map. A systematic approach by region is far more efficient than random wandering.

Recommended order:

1. Central Mine (Hyrule Castle Chasm) — story-adjacent, many Lightroots clustered near the center
2. Lanayru Depths — dense Lightroot cluster, relatively safe terrain
3. Faron Depths — accessible from south chasms, multiple Yiga outposts worth clearing
4. Akkala Depths — rich Zonaite deposits; bring plenty of Brightbloom Seeds
5. Hebra Depths / Tabantha Depths — sparse but contain unique armor pieces
6. Eldin Depths — volcanic surface does not apply underground; standard traversal

Navigation Without Getting Lost

• Surface map overlay — open the Depths map and mentally overlay it with the surface map; the topology matches
• Look for glowing pillars — Lightroots glow with a white-gold light visible from 200+ meters in the dark
• Throw Giant Brightbloom Seeds — Giant Brightbloom Seeds (fused to arrows) illuminate a huge radius and stay lit; use them as navigational beacons
• Stamp the map — use map pins to mark explored areas, Lightroot locations, and Zonaite vein clusters

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Key Depths Landmarks

The Central Mine

Directly below Hyrule Castle. The largest single Depths area, containing:

• Multiple Lightroots in a tight cluster
• The Master Kohga boss fight series (4 encounters tied to dungeon progression)
• Large Zonaite deposits — the densest ore concentration in the game
• Construct enemies guarding ore platforms

Depths Armor Locations

Three unique armor sets are found only in the Depths, in chests at specific locations:

• Depths Armor Set (Tunic, Trousers, Hood) — scattered across three locations in different Depths zones; provides gloom resistance when upgraded
• Phantom Armor — not in the Depths directly, but the quests that unlock it involve Depths exploration

Yiga Clan Outposts (Depths)

Yiga Clan has established outposts throughout the Depths near ancient ruins. Each outpost contains:

• 3–6 Yiga enemies (Footsoldiers and Blademasters)
• A chest with a Yiga Clan Schematic or Barbarian Armor component (see the Yiga Clan Depths guide)
• A Zonai Dispenser or resource cache nearby

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Zonaite Farming in the Depths

Zonaite is the Depths-exclusive currency used to upgrade your Energy Cells (Zonai battery). Larger Energy Cells let you use more Zonai Devices before needing to recharge.

Where to Farm Zonaite

• Central Mine — highest density of Zonaite nodes; farm here first
• Akkala Depths — northeast quadrant has dense Zonaite veins
• Eldin Depths — volcanic surface doesn't apply; standard Zonaite deposits throughout
• All Depths zones have Zonaite but Central Mine and Akkala are the most efficient

Farming Method

1. Enter the Depths via the nearest major chasm to your target zone
2. Activate all Lightroots in the zone as you go (restores gloom, reveals map)
3. Smash glowing Zonaite ore nodes with a heavy weapon
4. Defeat Construct enemies near ore platforms for bonus Zonaite drops
5. Return to surface, exchange at any Crystal Refinery (found near Skyview Towers and at Lookout Landing)

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Tips for Depths Exploration

• Never drop in without Brightbloom Seeds — at least 10 regular and 5 Giant Brightbloom Seeds per run
• Gloom Hands spawn near specific locations — avoid standing still in open dark areas; keep moving
• Lightroots fully restore gloom — use them as checkpoints, not just map markers
• The Depths has no weather — rain, lightning, cold, and heat do not apply underground
• Poes are everywhere — collect them for stat-up items from the Bargainer Statues (found throughout the Depths and at Lookout Landing)

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Related Guides

• Depths Guide
• Yiga Clan Hideout Depths Guide
• Zonaite Farming Guide
• Brightbloom Guide
• Gloom Recovery Guide