Many "cracked" walls in the late game lead to El Vibrato chambers. You often need Stench Resistance (available from the flower girl in Dirtwater) and a pickaxe to break through specific rock walls at the lowest levels of mines to uncover portals. Key Requirements for Act 4 Secrets
7.4 Costume and Makeup
Status of “Snake Road” – West Elos Sector, Act 4 Date: [Insert Date] Prepared by: [Your Name/Role] Classification: Useful / Internal coat west elos act 4 the snake road cracked