A Nether portal is a structure that allows players to travel to the Nether, a dimension in Minecraft filled with unique biomes, mobs, and resources. To create a Nether portal, players must first gather 10 obsidian blocks and arrange them in a rectangular frame two blocks high and four blocks wide. Once the frame is complete, players must use a flint and steel to light the portal, which will then become active and allow players to step through.
One way to create a Nether portal is to use a lava pool. Lava pools are naturally occurring structures in the Overworld that can be found in caves and ravines. To create a Nether portal using a lava pool, players must first dig a 3×3 hole in the ground. Then, they must place an obsidian block in the center of the hole and pour lava around the obsidian block, filling the hole. Once the lava has cooled, players can use a flint and steel to light the portal and step through.