Stuck at cave part (spoilers)

[eskrow]

I'm at the underwater part where I follow the robot with the lights and it gets eaten, then you're led to a green cave. Well, I died after leaving part of the cave, and it respawns me at the robot garage, but the robot is gone. I can't get back to the cave because I keep dying when trying to run there from the garage (and there's no indication where it is).