Villa O’Higgins to El Chaltén

Once back on land, the route resumes with a steep uphill. Early in the climb, you'll pedal upon the Chilean border crossing station. You must stop here and receive an exit stamp; this stamp is required to enter Argentina (~20 km further). Then, it's another ~5 km of extremely tough climbing before the route flattens out. As you climb, watch for northbound cyclists barreling downhill toward the dock and be sure to turn-around for fantastic views of Lago O'Higgins.

The route then enters a forest before meeting up with a stream and passing a rarely-used aeródromo. Some good wild camping options can be found near this stream—check out the primitive huts where (it looks like) people have stayed. According to a local farmer, much of this area is privately owned, so be cautious and courteous (and always respect posted signs).

Eventually the route reaches a billboard signaling the Chile/Argentina border. Here, the ripio ends and the route continues via single-track trail. In certain places, the trail is overrun with fallen trees and vegetation, making riding impossible. Expect mud, water crossings (knee-to-waist deep) and mosquitos. There are steep banks where it may be necessary to remove heavy panniers in order to lighten the load and more easily push your bike up.

Just after your first glimpse of Lago del Desierto, the route begins to descend toward the lake via a narrow trench. In most places, the trench is wide enough for a bicycle (with panniers) to fit through. Some cyclists may choose to remove their pedals to avoid potential damage to cranks.

The north shore of Lago del Desierto is the location of Argentina's border crossing station. Upon arrival, go inside and show your passport (and Chilean exit stamp). Camping here is free: there is a large grassy area near the border crossing station with horses and geese roaming about freely. If you’re lucky, you’ll get tranquil weather and a view of Monte Fitz Roy over the lake.

Ferries typically depart for the south shore of Lago del Desierto twice daily (~10:00 and 17:00). Tickets can be purchased in advance from the Robinson Crusoe Lodge igloo in Villa O'Higgins or upon boarding.  If buying tickets on board, use USD for best value. The ferry service also accepts ARS and CLP (worst value). The ferry crossing takes ~45 minutes.

Some maniacs may opt to forgo the ferry and continue toward El Chaltén via a ~11 km trail that traces the eastern shore of Lago del Desierto. This is an incredibly difficult trek, especially with bicycles.

At the south shore of Lago del Desierto, the road resumes and it's a 35 kilometer ride to El Chaltén.  The ride is relatively flat and provides amazing views of Monte Fitz Roy. Ripio conditions are moderate to poor.