Quick answer
GamesRadar+ places the Heat Tolerance Adaptation inside an infected Angel Comb roughly 190-200m northwest of the Lifepod at about bearing 285. PC Gamer describes the first Angel Comb as about 200m northwest, around bearing 300, and says it grants Heat Tolerance after clearing viral blooms. GAMES.GG says you need to clear three Bloom infestations before the Angel Comb becomes accessible and notes the adaptation helps you pass the heat barrier into the hot biome. Bring Sonic Resonator, better oxygen, medical kits, and a distraction option.
Field notes for the heat gate
Use bearings to find the neighborhood
The reported bearings are close but not identical. Use them to reach the northwest biome, then follow infection, Bloom sites, and terrain instead of staring at degrees.
Heat Tolerance is the reward, not the route
The work is clearing Bloom infestations safely. The adaptation comes after the area is stable enough for the central Angel Comb interaction.
Bring recovery, not just tools
Sonic Resonator matters, but so do medical kits, oxygen margin, and a way out. The route gets messy when players prepare only for the object they need to hit.
Heat Tolerance route plan
Find the northwest Angel Comb route
Current guides point northwest from the Lifepod, roughly 190-200m away, with bearings reported around 285 to 300 degrees. Use the numbers as a search cone, not a pixel-perfect coordinate.
Bring Sonic Resonator before touching Bloom
PC Gamer and GAMES.GG both tie the route to clearing viral Bloom growths, and PC Gamer calls out Sonic Resonator prep. If you arrive without the tool, you have found the problem but not the solution.
Upgrade oxygen before the cave work
PC Gamer recommends better O2 capacity, such as Standard Air Tank and an Air Bladder. This is a route with chambers, enemies, and backtracking, so shallow-water oxygen habits will feel thin.
Clear the smaller Bloom sites first
GAMES.GG describes the route as two smaller Bloom sites and a larger central Angel Comb. Treat it like a small sequence: clear access, check oxygen, then move to the core.
Use the unlock for hot-biome resources
GAMES.GG points players toward the hot biome after Heat Tolerance, with Gold and Sulfur as resources worth prioritizing. Do not hug thermal vents even after the adaptation; heat protection is not invincibility.
Heat gate stack
Route
NW
Search 190-200m from Lifepod, around 285-300 degrees.
Tool
Sonic
Clear Bloom before the Angel Comb opens.
Unlock
Heat
Use it for hot biome access and resource routes.
Heat Tolerance checklist
| Bring | Why it matters |
|---|---|
| Sonic Resonator | Needed for Bloom / Angel Comb progress in current guides. |
| Standard Air Tank | Gives more room for cave chambers and mistakes. |
| Air Bladder | Useful emergency exit tool when the route gets messy. |
| Medical Kits | Aggressive sea life can turn the route into attrition. |
| Flare or mobility help | PC Gamer suggests distraction or movement prep. |
Heat Tolerance does not make vents harmless
GAMES.GG notes the adaptation raises what you can survive, but direct vent contact can still punish you. Treat the hot biome like a new route with new rules, not a victory lap.
FAQ
Where is Heat Tolerance in Subnautica 2?
Current guides place the first Heat Tolerance Angel Comb northwest of the Lifepod, roughly 190-200m away, with reported bearings around 285 to 300 degrees.
What do you need before getting Heat Tolerance?
Bring Sonic Resonator, better oxygen capacity, an Air Bladder, medical kits, and a distraction or mobility option if you have one.
Why is the Angel Comb closed?
Guides describe the Angel Comb as blocked by viral Bloom infestations. Clear the connected Bloom sites first, then return to the core.
What does Heat Tolerance unlock?
It lets you push through heat-gated water and hot-biome routes. Current guides connect that progress to Tadpole Pens, Gold, Sulfur, and deeper mid-game routing.