Spectacle Rock Cave EG
From ALttP Speedrunning Wiki
Spectacle Rock Cave EG is a trick where the player enters EG from the lower floor of the Spectacle Rock Cave system on Death Mountain. This trick is useful in many MG Speedruns because of the cave's proximity so a Savepoint (Old Man Cave) as well as the specific Supertile being nearby other useful areas (Palace of Darkness, Thieves' Town, Ganon's Tower, etc.) on the EG Map.
Methods for Entering EG
There are several ways you can enter EG from Spec Rock Cave. Which method you choose depends on category/goal and player preference.