Yes, a 1-year-old can ride the Haunted Mansion at both Walt Disney World and Disneyland, as the attraction has no height requirement. This is a "continuous loader" or "Omnimover" ride, meaning the Doom Buggy vehicles move at a very slow, steady pace throughout the entire experience, making it physically safe for infants and toddlers. While it is physically accessible, parents should consider the "spookiness" factor; the ride takes place almost entirely in the dark and features loud noises, flashing lights, and "ghostly" imagery. While a 1-year-old is likely too young to understand the concept of ghosts, they may be frightened by the sudden changes in lighting or the deep, booming voice of the Ghost Host. One significant advantage for parents is that because there is no height limit, the whole family can stay together rather than using "Rider Switch." Many parents find that their toddlers are mesmerized by the "dancing ghosts" in the ballroom scene, but if your child is particularly sensitive to the dark or loud sounds, you might want to have a pacifier or a familiar comfort item ready to help them feel secure during the 10-minute journey through the mansion.