{"id":36502,"date":"2025-04-30T11:03:25","date_gmt":"2025-04-30T15:03:25","guid":{"rendered":"https:\/\/blog.howlanders.com\/news\/o-circuit-day-4-los-perros-camp-grey-sector\/"},"modified":"2025-07-21T05:10:04","modified_gmt":"2025-07-21T09:10:04","slug":"o-circuit-itinerary-day-4","status":"publish","type":"post","link":"https:\/\/blog.howlanders.com\/en\/chile\/torres-del-paine\/o-circuit-itinerary-day-4\/","title":{"rendered":"O Circuit Day 4 in Torres del Paine: from Los Perros Camp to Grey Sector"},"content":{"rendered":"\n

The Toughest (and Probably Most Spectacular) Day of the O Circuit<\/h2>\n\n\n\n

After a good rest following Day 3\u2019s hike<\/a>, we begin the fourth stage of our trek: O Circuit <\/a>\u2013 Day 4<\/strong>. Today\u2019s route takes us from Los Perros Campground <\/a>to the Grey Sector<\/a>. Here are the key details: <\/p>\n\n\n\n

Here\u2019s what today\u2019s hike looks like:<\/p>\n\n\n\n

Distance:<\/strong> 10.6 miles (17 km)<\/p>\n\n\n\n

Time in motion:<\/strong> 6h 20 min<\/p>\n\n\n\n

Total time:<\/strong> 9h 20 min<\/p>\n\n\n\n

Accumulated positive difference in altitude<\/strong>: 2,927 feet (892 m)<\/p>\n\n\n\n

Accumulated negative elevation gain:<\/strong> 4,518 feet (1,377 m)<\/p>\n\n\n\n

Difficulty:<\/strong> high

Route in Wikiloc<\/a><\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

Improvised Breakfast and Mandatory Departure Before 7:00 AM<\/h3>\n\n\n\n

The day starts early. Los Perros doesn\u2019t offer breakfast or lunchboxes, so we dig into the stash we packed in Puerto Natales\u2014instant coffee, bread, nuts, granola bars, and leftover protein bars from previous lunchboxes. It\u2019s enough to cover breakfast and lunch. Keep in mind that meal services at Los Perros change from year to year. <\/p>\n\n\n\n

\n

\u26a0\ufe0f Important: Staff at Los Perros will hurry you out if you haven\u2019t left by 7:00 AM. It\u2019s not arbitrary\u2014it\u2019s for your safety. <\/p>\n<\/blockquote>\n\n\n\n

\n\n\n\n

Climbing John Garner Pass: Mud, Forest, and\u2026 Glaciers!<\/h2>\n\n\n\n

It\u2019s raining and we face a steady climb toward the famous John Garner Pass. The first part takes us through dense forest where the mosquitoes are still active. Mud, exposed roots, and technical sections slow our pace, but what matters most is getting through. <\/p>\n\n\n\n

We emerge from the forest and reach the first viewpoint. Then it\u2019s on to a new stretch, where the tall trees give way to low brush and finally to rocky terrain. A glacier appears on our right, and we keep getting closer.<\/p>\n\n\n\n

\n\n\n\n

The Descent: Technical, Long, and Otherworldly Views<\/h2>\n\n\n\n

The final stretch up John Garner Pass feels like scaling a staircase built for giants\u2014huge rocks everywhere. It levels out, we cross a snowy patch, and within minutes a cloud from the valley rolls in. It starts to rain heavily. But then, we cross the pass and there it is: the mighty Grey Glacier. It’s immense. We watch as smaller glaciers from nearby valleys feed into it, like tributaries joining a river. It might just be the biggest WOW moment of the entire O Circuit.<\/p>\n\n\n\n

\n\n\n
\n
\"\"<\/figure>\n<\/div>\n\n\n

We hear that the snowy stretch\u2014just a few centimeters today\u2014was 12 inches (30 cm) deep last week. That\u2019s why gaiters are strongly recommended for this section of the trek.<\/p>\n\n\n\n

The descent begins\u2014steep and technical, and dangerous if rushed. Gradually, the skies clear and the glacier starts to glow under the sunlight. Wait\u2026 are those mosquitoes again? We continue down a bare trail, and suddenly\u2014reward! A rainbow over the glacier. <\/p>\n\n\n\n

The second section of the descent is a narrow trail with constant switchbacks, loose rock, and lots of exposed roots. It\u2019s hard to find a rhythm. We adapt to the terrain and the descent feels endless. Legs start to burn, but we know we\u2019ll stop for lunch at El Paso Campground. Every step brings us closer to the glacier, as we follow the path down the valley side. We finally reach a flatter area and begin to cross small streams. We\u2019ve been walking for miles alongside a glacier\u2014and that realization never stops feeling magical. <\/p>\n\n\n\n

Arrival at El Paso Campground<\/h2>\n\n\n\n

We reach El Paso Campground, check in with CONAF staff, and chat with the rangers. They mention a new shelter is being built here to help shorten what\u2019s considered the hardest day of the O Circuit in Torres del Paine. We have lunch in a shed with a couple from San Diego and San Francisco, share stories, and continue onward. We\u2019ve still got exactly what the signpost shows ahead\u2014and honestly, it might be the most accurate sign in the whole park. <\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n
\n\n\n\n

Hanging Bridges, Grey Viewpoint, and Arrival at the Refugio<\/h2>\n\n\n\n

We keep descending slowly beside the glacier, now getting closer to the front, we pass Nunatak Island\u2014a landmass that used to be entirely surrounded by glacier ice, but is now only partially encircled due to glacial retreat.<\/p>\n\n\n\n

We cross three massive hanging bridges\u2014definitely not for those with vertigo\u2014and pass the Grey viewpoint. This is a popular stop for trekkers coming from Grey Refugio, especially those on the W Trek.<\/a><\/em><\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n
\n\n\n\n

End of the Stage: Grey Sector and a Well-Deserved Beer \ud83c\udf7b<\/h2>\n\n\n\n

We finally arrive at Grey Refugio. First things first\u2014we grab a beer and enjoy it on the terrace, laughing with the couple we met earlier at El Paso. The vibe is completely different now. We’ve left behind the park\u2019s remotest zone and are entering the sections with larger refugios. <\/p>\n\n\n\n

We wrap up a day with over 10.5 miles, nearly 3,000 feet of climbing, and more than 5,000 feet of descent on terrain that\u2019s left our legs feeling like Playmobil figures.<\/p>\n\n\n\n

End of Circuit O <\/a><\/strong>– day 4. More tomorrow, but I doubt if it will be better… <\/p>\n\n\n\n

\n\n\n\n

Tips for the Los Perros – Grey stage<\/h2>\n\n\n\n

\u2705 Bring breakfast and lunch prepared<\/strong> from previous stages.
\u2705 Leave no later than 7:00 AM.<\/strong>
\u2705 Gaiters<\/strong>: highly recommended if there is snow on the pass.
\u2705 Take it easy on the descent<\/strong>, especially if it has rained.
\u2705 Bring battery and room in your camera<\/strong>. You don’t want to miss the pictures of Grey Glacier. <\/p>\n\n\n\n

\n\n\n\n

Do you want to know how the adventure continues? \ud83d\udc47
\u27a1\ufe0f Day 5: Grey Sector – Paine Grande<\/a><\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

The Toughest (and Probably Most Spectacular) Day of the O Circuit After a good rest following Day 3\u2019s hike, we begin the fourth stage of our trek: O Circuit \u2013 Day 4. Today\u2019s route takes us from Los Perros Campground to the Grey Sector. Here are the key details: Here\u2019s what today\u2019s hike looks like: […]<\/p>\n","protected":false},"author":31,"featured_media":36418,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[214],"tags":[],"class_list":["post-36502","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-torres-del-paine"],"yoast_head":"\nCircuit O day 4 | Camp Los Perros to Sector Grey<\/title>\n<meta name=\"description\" content=\"O circuit day 4: from Los Perros to Grey passing through the spectacular John Garner Pass. 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