Dive

Desolate Dive (Quake) is a progression item. It allows you to kill Elder Baldurs and to break certain floors.

More specifically, it allows you to
 * enter Crystal Peaks from Crossroads
 * enter Crystallized Mound
 * enter Crypts (below Resting Grounds)
 * enter the area below Nailmaster Oro in Kingdom's Edge
 * enter the lower half of Royal Waterways
 * enter Fungal Wastes from City
 * enter Howling Cliffs from Joni's dark room
 * leave Soul Sanctum
 * fight White Defender
 * get the bench in Royal Waterways
 * check Rancid_Egg-Crystal_Peak_Dive_Entrance
 * check Wanderer's_Journal-Kingdom's_Edge_Requires_Dive
 * check Grub-Hive_External
 * check Grub-Basin_Requires_Dive
 * check Journal_Entry-Goam (Crossroads)