Travelling Activities

While doing a travel activity: no contribution to passive Perception for noticing threats
Navigating - Survival check
- DC - 5 (open terrain), 10 (limited line of sight, e.g. hills), 15 (obscured terrain, e.g. jungle)
Drawing a map - No check required
Tracking - Survival check
- DC - 10 (soft surfaces), 15 (dirt or grass), 20 (bare stone)
- Modifiers - +5 (per day passed), -5 (creature left a visible trail, e.g. blood)
Foraging - Survival check
- DC - 10 (easy), 15 (limited resources available), 20 (very scarce resources)

Dungeon Master's Guide, page 111, Dungeon Master's Guide, page 244, Player's Handbook, page 183