Minecraft wiki entry for Exploring_an_ancient_city, associated text: When you explore the city, the most important thing is to Sneak at all times, unless you are on the corridors with Gray Wool walkways. This will make you move slower unless you have Swift Sneak on your leggings, which you won't have if this is your first trip to an Ancient City, as it can only be found there. However, there is a trick to sneak faster: sneak diagonally. when pressing two directional keys (such as forward and right) at the same time, the player moves at a faster 1.8 m/s as opposed to 1.3 m/s. This can make it hard to see where you are going, so you can use the third-person view to get an eagle eye view of your character.