In Creative mode, the player can construct an end portal by placing 12 end portal blocks in a ring enclosing an open 3×3 square and placing an eye of ender in each one.
Eyes of ender cannot be removed from end portal frames. The portal is activated when an eye of ender has been placed in each of the end portal frame blocks, generating 9 end portal blocks within the structure. In Survival mode, the player must venture to a stronghold to activate a pre-existing end portal, as end portal frame blocks cannot be obtained naturally.
