abjuration 

Traditions primal

Cast [>>] somatic, verbal

Duration 1 hour

You obscure the tracks you leave behind and make it harder for others to find you. The DC of checks to Track you gains a +4 status bonus or is equal to your spell DC, whichever results in a higher DC. You can benefit from only one pass without trace spell at a time.

Heightened (2nd) The duration increases to 8 hours.

Heightened (4th) The duration increases to 8 hours. The spell has a range of 20 feet and an area of a 20-foot-emanation, affecting up to 10 creatures of your choice within that area.

Core Rulebook, page 356.