Hidden throughout New York are 35 Underground caches just waiting to be discovered. You'll get a Tech Point for each one tไhat you find and can use these to upgrade gadgets, craft mods and even unlock new suits for Miles to wear as he swings his way across the city. You'll also get the "Salvager" trophy for collecting them all.
Before you can start tracking them down though, you'll first need to complete the main story mission "Harlem Trains Out of Service". After doing so, you'll be free to collect the other 34 in any order you like. In order to find them, you'll need to head to the locations💙 marked on the map and then activate the compass using R3 to pinpoint their exact locations.
Underground Cache #1 - Midtown
Miles will find the first cache about half way thrꦑough the story mission "Harlem Trains Out of Service". It can't be missed, so just make your way through the mission as instructꦉed.
Reward(s): 1 Tech Part
Underground Cache #2 - Central Park
Head to the nort𒁏hern area of the park and look for the small structure with the large flagpole. You'll find the cache beneath the American flag near some cardboard boxes.
Reward(s): 50XP + 1 Tech Part
Underground Cache #3 - Central Park
Make your way to the fountain and then follow the 🔯compass to a breakable wall. You'll find the cache in the center of this newly accessible ꧂structure next to some garbage bags.
Reward(s): 50XP + 1 Tech Part
Underground Cache #4 - Chinatown
The marker will lead you to a𒉰 Roxxon gas station with a couple of garages and a snack shop. Use L1 and R1 to pull the gear above the left hand garage and then quickly fire some web at it to hold it open.
You'll then ✤need to crawl under the car and drop down the hatch into the lab below. From here, head through the vent above the door to your left and you'll see the cache directly in front of you o🐬nce you emerge on the other side.
Reward(s): 50XP + 1 Tech Part
Underground Cache #5 - Chinatown
About half way up the building there is some computer equipment covered by a white pavilion. The cache is to the left of the monitors🍃 and is quite hard to ✱miss.
Reward(s): 50XP + 1 Tech Part
Underground Cache #6 - Chinatown
The cache is hidden o𝔉n the third story of a multi-layered par𒁃king structure slap-bang in the center of Chinatown.
Reward(s): 50XP + 1 Tech Part
Underground Cache #7 - Chinatown
Make your way to the top of the tower block with the white pavilion on top and you'll find the cac🦹he right next to one of the building's stairwells.
Reward(s): 50XP + 1 Tech Part
Underground Cache #8 - Financial District
Follow the marker to the gas station and then open up the garage on the right. Travel through the air vent and then look for the generator. Y🃏ou'll need to charge it up and then connect it to the pilon next to the door near where you entered. After it unlocks, you'll be able to get to the cache.
Reward(s): 50XP + 1 Tech Part
Underground Cache #9 - Financial District
The cache is on a rooftop hidden beneath s🌼ome stairs. Before you can reach it though, you'll first need to pull the green dumpster out of the way by holding L1 and R1. Justꦉ make sure to jump straight after doing so to avoid being crushed against the wall.
Reward(s): 50XP + 1 Tech Part
Underground Cache #10 - Financial District
Swing around the back👍 of the building and you'll find a couple of boat docks. The cache is against the wall on the left in the one on the right hand side.
Reward(s): 50XP + 1 Tech Part
