Dientes de Navarino
Dientes de Navarino (also called Circuito de los Dientes) is a remote multi-day hiking circuit on Navarino Island, Chile, built around jagged “teeth” peaks near Puerto Williams on the Beagle Channel. The route is short on paper but it’s run like a wilderness expedition: no services on the circuit, wild camping throughout, and heavy self-navigation work when the landscape has no obvious path.
Expect serious route-finding and unstable ground. Much of the walking involves subantarctic forest transitioning into bogs, peat, and uneven terrain, with route sections that can disappear under fog and poor visibility; marker systems are sparse and can be hard to spot when conditions change quickly.
Weather is the dominant limiter. Conditions can swing from calm to snow and gale-force winds within a short window during the season, and even in high summer you may hit snowfields on passes and cold, wet ground on lower sections.
The circuit is commonly described as taking about 4–6 days for a full circuit around the Dientes peaks. Camping is typically selected on the best available firm ground near bogs and sheltered patches, and you’ll need to carry a windproof tent and all food and gear for the duration.
High points are part of why the hike feels demanding. The route’s biggest passes include Paso Virginia (highest point on the circuit) and other high saddle crossings that can require careful movement over rocky slopes and loose scree when visibility is limited or snow is present.
Classic day-by-day logistics center on a Puerto Williams start and return, then sleeping at multiple lakes along the circuit (including Laguna del Salto early, and Laguna Guanaco nearer the end). The final approach back trends through forest toward Puerto Williams rather than a technical alpine exit.
The circuit was first set out in the 1990s by Australian climber and author Clem Lindenmayer, and the route passes peaks named Cerro Clem and Montes Lindenmayer (honored by Chilean natural resources authorities in 2001). The namesake “teeth” refer to the jagged pinnacles of the range that resemble rows of teeth.
Plan around seasonality: the trekking season runs in austral summer, roughly mid-December to mid-March, while the route is generally closed from May to October.
More information: Wikipedia, I Hiked Chile's Dientes de Navarino. Here's What I Learned., Dientes de Navarino Trek Backpacking Guide - 100 Peaks