In LEGO Fortnite Ninjago, the Lost Isles Mountains contain several blocked locations designed as challenge encounters. One such location is a sealed cave that cannot be accessed through normal exploration. Opening it requires activating a nearby Rift Shrine and preparing for combat inside.
What is a Rift Shrine & How it works
A Rift Shrine is a special activation structure found in specific areas of the Lost Isles Mountains. These shrines are linked to environmental changes rather than fast travel or buffs, and often require you to place specific items into the shrine before it can be used.

Once the required items are placed, interacting with the Rift Shrine triggers a rift pulse that alters the surrounding terrain. For this cave, the pulse removes the stone barrier sealing the entrance. After activation, the cave remains permanently open, allowing repeated access without needing to use the shrine again.

Exploring the cave
After the Rift Shrine completes its activation, the stone seal disappears from the cave entrance nearby. You can then enter the cave and explore.

You will find treasure chest inside, make sure to collect the items.

Golems are usually found in caves, these enemies are far more durable than standard surface mobs, relying on slow but powerful melee attacks that can deal heavy damage if ignored. Golems serve as a reliable source of Rift Shards, which are essential for progression, crafting, and unlocking certain upgrades.

Use Epic weapons like Ruby Sword and Sapphire Spear, and also healing items to defeat the Golem quickly and efficiently.

Golem fighting tips
- Do not stand directly in front of a golem while it attacks; their heavy melee swings and slams deal high damage.
- Wait for the brief recovery pause after a golem’s swing before counter‑attacking.
- Keep moving to avoid repeated hits in tight spaces.
- Use ranged weapons when possible to deal damage from a safer distance, especially in cave corridors.
- Bring healing items, as combat against golems can be prolonged due to their high durability.
- Carry spare tools or backup gear to maintain effectiveness during extended fights.
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