Now through August 10th, guests experiencing the Haunted Mansion will receive the Sarah “Sally” Slater achievement, featuring the young girl balanced on a tightrope.
From August 11th through 18th, visit the Haunted Mansion and get the Madame Leota achievement.
Then, from August 19th through the 24th, brave the Haunted Mansion and earn the Watchman (and his dog) achievement.
Guests collecting all three will receive a special fourth achievement that celebrates the Mansion’s 50th.
The free Play Disney Parks app allows guests inside the theme parks to immerse themselves in the stories, collect achievements, test their Disney knowledge, and interact with the parks.
Source: Disney Parks Blog