Navigating to the Underdark in Baldur's Gate 3 is a vital milestone during Act 1, offering players access to unique gear, powerful allies, and essential narrative progression. Because the subterranean world lies deep beneath the surface, finding a way down requires discovering one of four distinct entrance points hidden across the map. Choosing the right path depends on your party composition, combat readiness, and narrative preferences.
The Defiled Temple Passage via the Goblin Camp
The most straightforward route into the Underdark is located deep within the Goblin Camp inside the Shattered Sanctum. Players must enter Priestess Gut's private chambers and solve the rotating floor puzzle in the Defiled Temple to unlock the hidden door. Alternatively, rogue characters can lockpick the hidden lever nearby to bypass the puzzle entirely and reveal the stairwell leading down.
Descending this path brings your party directly into the Selûnite Outpost within the Underdark. This entry point is exceptionally safe because the outpost features active defensive statues that eliminate aggressive local creatures. It serves as an ideal base for players who prefer a secure introduction to the dangerous subterranean environment.
The Whispering Depths Chasm
Located directly beneath the ruined village, the Whispering Depths cave system offers a rapid shortcut into the Underdark. Players must venture past the Phase Spider Matriarch boss to reach a massive glowing chasm near the center of the lair. Casting Feather Fall on your party members before jumping into the pit is mandatory to survive the descent.
Leaping into the chasm drops your party straight into the central area of the Underdark near the Minotaur roaming grounds. While fast, this method drops adventuring parties directly into high-risk combat encounters without immediate cover. Ensure your party is fully rested and prepared for battle before taking the plunge.
The Zhentarim Hideout Elevator
Players exploring the Waukeen's Rest area can uncover a secret Zhentarim hideout hidden behind a barn. By gaining the trust of the black-market smugglers or clearing them out through combat, you can gain access to the back of their cave network. A hidden elevator behind an illusory wall provides direct mechanical transport downward.
Using the Zhentarim elevator places your group near the northern edge of the Underdark, close to the Myconid Colony. This route is highly recommended for players looking to quickly interact with the Myconid Sovereign and start local quests. It provides a strategic positioning advantage for exploring the northern region early on.
The Riverside Teahouse Illusion Wall
Hidden within the Sunlit Wetlands, Auntie Ethel's teahouse hides another mysterious entry point to the subterranean depths. Deep inside her overgrown lair, players can find a green door that is actually an illusion hiding a cavern pathway. Equipping a Whispering Mask or using stealth allows players to pass through the barrier safely.
Beyond the illusion, a mushroom portal transports your party directly to the western region of the Underdark. This entrance requires careful navigation to avoid traps and environmental hazards within the teahouse tunnels. However, it offers a distinct alternative for players who complete Auntie Ethel's storyline before heading below.
