One of the things you need to do in Horizon: Zero Dawn is reveal the entire map. In order to do this, you have to climb tall giraffe like beings called Tallnecks that will uncover everything.
In order to find Tallnecks, you can press the touchpad on the DualShock 4 controller to look on the map. The map should have silhouettes of four or five beings of the machine you see above.
Anyway, when you first play Horizon: Zero Dawn, most of the map will be blocked by fog. Climbing on these guys will allow you to see the whole map. Revealing the map shows locations of merchants, cauldrons, settlements and more.
When you see a Tallneck, you need to climb to a higher location in order to get to it. You should seek ramps or cliffs to get a better view of the area. Tallnecks usually walk in a predictable circle pattern,
If you get to a good position, you want to jump just above its neck. The Tallnecks usually have yellow flat bars for you to grip on. Try and make Aloy climb to the top to its circle like head. When you reach the top, press and hold triangle and Aloy will override it.
If you do that successfully, you will reveal more areas of the map. Do this multiple times so the entire map is revealed for you. Think of it like climbing towers in Assassin’s Creed.
