Tremorsense

You touch a willing creature to grant it the ability to sense vibrations in the earth. For the duration, that creature can detect and pinpoint the origin of vibrations within 120 feet, provided that the creature and the source of the vibrations are in contact with the same ground or substance.

This sense can’t be used to detect flying or incorporeal creatures or see invisible ones (though it can pinpoint the location of an invisible creature moving on or through the earth).