At the end of the path, you should see it open up into a room with a number of beds. There actually shouldn’t be any enemies along the path, so just watch the ground and move at your own rate. Disarm the mine or shoot the tank from a distance to keep yourself alive. You’ll want to turn to the right and swing down after watching for another tripwire, and the nasty trap of a mine next to an oxygen tank. This is basically a wonder food, which reduces hunger, provides a fair amount of healing and even takes down your radiation. On the bright side, there is a ton of cave fungus growing along the path. There are a few mines along the path too. Move forward and watch for more tripwires as you move down into the cave. They also stand out against the ground fairly well though. You should have time to disarm them, since they’re just basic frag mines. There are a few mines on the ground, so move forward carefully.
Disable the rigged shotguns if you want some extra loot, then move to the back of the cave.
You can then safely walk into the front of the room.
Start by walking forward and disarming the tripwire. You’ll need to be very careful once you get inside. You can find this cave on the path into the Dead Horses camp.