Side-Along Apparition

Side-Along Apparition is a form of Apparition that can be used to transport underage wizards long distances very quickly. The older wizard is the one who apparates, with the younger holding on to their arm.

This method is recommended by the Ministry of Magic for parents with underage children to escape from danger quickly.

Albus Dumbledore takes Harry Potter to Horace Slughorn's hideout by means of Side-Along Apparition. (HBP)