Underwater Labs: Diving Gear and What's Down There
Underwater Labs are one of the few monuments you literally can't reach without the right gear. Here's what to bring and what you'll find.
Underwater Labs is a monument built entirely beneath the ocean's surface, meaning it's inaccessible without proper diving equipment — a genuinely different kind of monument run compared to anything on land.
Gear You'll Need
A Diving Tank and Diving Mask (or full Diving Suit) are essential — without them you simply can't stay underwater long enough to reach or explore the labs. Bring spare tanks if you're planning a longer run, since running out of air mid-exploration is a real risk.
What to Expect Inside
Underwater Labs typically features multiple connected sections, locked doors requiring keycards for the best loot, and its own NPC scientists guarding key rooms — similar in structure to land-based monuments like Military Tunnels, just relocated beneath the waves. Expect a mix of components, weapons, and occasionally blueprints.
Risk Factors
Beyond the NPC resistance, the underwater setting itself is a hazard — running low on air far from the surface, or getting caught in a fight while submerged, adds a layer of risk land monuments don't have. Plan your air supply with a safety margin, not just exactly enough to get in and out.
Is It Worth the Trip
For players who already have diving gear and a boat to reach the site, it's a worthwhile change of pace with solid loot. For players without the gear, the setup cost (tanks, mask, boat) may not be worth it unless you're already planning a broader loot run that justifies the investment.
Can I access Underwater Labs without a Diving Tank?
No — without diving gear you simply can't stay submerged long enough to reach or explore it meaningfully. It's genuinely gated behind having the right equipment.
Should I bring spare diving tanks?
Yes, especially for a longer exploration — running out of air with no spare tank while still inside the labs is a serious risk, and surfacing mid-run costs time and can expose you along the way.
Are there scientist NPCs underwater too?
Yes — Underwater Labs has its own NPC defenders guarding key areas, similar to land monuments like Military Tunnels, so come prepared for a fight, not just a swim.
Do I need a boat to reach it?
Generally yes, unless your base happens to be very close to the site — most players approach by boat, then switch to diving gear once they're near the actual entrance point.