Crawl
Movement
Part of Movement
Crawl is a MovementMovement MovementMovement is how you change your position. you use to MoveMove ActionMove is the Action you use to change your position. across horizontal surfaces while ProneProne ConditionProne is a Condition you gain when you are knocked or dropped to the ground..
Core Rule—Crawl
Without a Crawling adaptation, each SpaceSpace RuleSpaces are grid tiles that measure position, distance, and Size. you Crawl is Difficult TerrainDifficult Terrain MovementDifficult Terrain is any Space that slows your Movement, such as rubble, deep water, or a sheer wall..
Source Player Codex