Enter the Nether through a portal
Look for long bridge-like structures made of dark red nether bricks
Search across open areas, especially near lava oceans
Travel in one direction for a long distance to cover more ground
Increase render distance if possible
Use the F3 debug screen to note your coordinates and avoid getting lost
Explore along the X or Z axis in a straight line
Check elevated terrain and large open spaces
Listen for Blaze and Wither Skeleton sounds
Use a seed map or fortress locator tool if allowed
Build safe paths with blocks and torches to mark your route
Search in multiple Nether biomes if needed
Keep your portal coordinates in mind for a quick return
Look for fortress corridors, staircases, and fenced bridge sections