Obsidian platform

Obsidian platforms are 5×1×5 squares of obsidian that generate when an entity enters the End through an end portal.

Generation
Obsidian platforms generate at coordinates (100, 48, 0), mostly far away from the island, making it tough to get there. Players who enter the end spawn at coordinates (100, 49, 0) and the other entities that enter the end spawn at coordinates (100.5, 50, 0.5), in the middle of and 1 block higher than the platform. Sometimes the platform generates inside a case of end stone; enough end stone is removed in this case so that the player can walk around, with 4 blocks high of breathing space. Occasionally a platform may generate in midair.

If the platform is destroyed, or if a block is placed on top of it, the platform is restored and any overlaying blocks on or within 3 blocks above the obsidian are removed when the player enters the End.

An obsidian platform only generates when an entity uses an end portal, not when teleporting with.