Ludington exists because of the lake crossing. For over two centuries, ferries have run from this port across Lake Michigan to Wisconsin, and every economic era has found a reason to keep them running. In 2200, the reason is strategic: the SS Badger's successor fleet -- now operated by Tethys Logistics under contract to the GLMZ Transit Authority -- runs the only civilian surface crossing between the eastern and western shores. Everything else on the lake is cargo platforms, Ringo patrol routes, or restricted corporate shipping lanes. If you need to move people or light freight across the lake without going through the GLMZ corridor's chokepoint, you come to the Crossing.

The ferry terminal dominates the harbor like a cathedral of transit infrastructure. Three automated ferries run daily crossings to Manitowoc on the Wisconsin side, each capable of carrying 600 passengers and 200 vehicles. The crossing takes four hours and passes through some of the most heavily monitored water on Earth -- Ringo's maritime patrols scan every vessel, and the ferry route itself is a designated security corridor with autonomous weapons platforms anchored to the lakebed at regular intervals. Passengers are scanned boarding and disembarking. The ferries are the most surveilled civilian transport in the GLMZ outside of the maglev network.

Around the terminal, Ludington has developed the particular economy of a transit hub: services for people waiting, services for people arriving, and services for people who don't want to use the official crossing and are looking for alternatives. The town is small enough to be navigable and connected enough to be useful. The old downtown has a faded resort-town charm that the ferry traffic keeps just barely alive -- restaurants, equipment shops, a few hotels that cater to travelers who can't afford or don't want the automated ferry's passenger pods. North of town, the Ludington State Park shoreline has been designated a GLMZ Environmental Preservation Zone, which means it's beautiful, monitored, and off-limits to anyone without a Tier 3+ recreation pass. South of town, the marina district serves the fishing fleet and the not-quite-legal charter boat operators who offer 'private crossings' for passengers who prefer not to appear on Tethys manifests.