Obtain End Portal access by finding and activating an End Portal Frame in a Stronghold
Enter the End using the End Portal
Defeat the Ender Dragon to unlock access to the outer End islands
Find the Nether Portal coordinates by traveling to the Overworld location where you previously built your Nether Portal
In the Nether, travel to the biome area where Nether Fortresses commonly generate
Look for Nether Fortresses in the Nether’s warped forests and nether wastes, especially near large lava lakes
Use chunk-based navigation: search systematically in the Nether for fortress structures
Use F3 to monitor direction and coordinates while exploring
Use a Nether Fortress finder method by mapping seed-based structure locations (world seed required)
Locate a fortress by observing castle-like stone brick structures with nether brick elements
Once found, explore corridors and bridges to reach the Nether Fortress interior
Check for blaze spawners and loot rooms inside the fortress