He takes to the main channel again and follows it inward until it terminates beneath one of the Core ships, a containership converted into a high-rise apartment complex. A cargo net serves as a ramp from one to the other. It probably serves as a drawbridge also, when undesirables try to clamber up out of the ghetto. Hiro is about as undesirable as anyone can be on the Raft, but they leave the cargo net there for him.