Adventure, who's now an elderly man, has been Dave's hero since he was a boy. He is a strong and active man for his age, able to carry a large backpack and all three of the boys at the same time. Uncle Adventure has taken part in many journeys, such as being thrown into a volcano and meeting tribes, and is angered when people view him as a fragile senior citizen. He is determined not to let anyone tell him how young he can act as a result of his elderly appearance.