Next stop El Chalten where we’d hoped to do quite a lot of hiking but the weather is notoriously fickle so it was very weather dependent. After our first couple of days there it looked like a small weather window was opening for 3 days. The forecast for the first 3 days was ok, the 4th was for a fair bit of rain – but we’d be out of the mountains by then. Not being that confident in alpine conditions we consulted a few local sources and decided it was good enough to attempt the Huemul Circuit.
The Huemul Circuit is typically a 4-day circuit of Cerro Huemul, a 2700m peak on the disputed border between Argentina and Chile.

The Huemul Circuit
One of the great things about El Chalten is most of the trailheads leave from town so no driving needed. This meant we just walked out the door (after registering with Parks via their google doc survey) at 9am and into the mountains. We were delighted to find we got some views of Fitzroy early on, and the vistas just kept opening up. The precipitation of the previous days meant there was recent snow on the ground, and plenty of boggy sections to negotiate. Only one shoes-off river crossing fortunately!

Tom with views of Fitz Roy

Crossing recent snow as we near our highpoint for the day, with spectacular views

Over the highpoint with views of Cerro Huemul (mountain on the left which the walk circumnavigates)

The only shoes-off crossing we had of the trip. A little chilly!
We made it to the day 1 campsite (Laguna Toro) and got one of the last ‘good’ sites. The problem with the weather windows is everyone jumping on the track when one arrives – there were probably >40 people at the campsite that night. Supposedly there used to be a long drop here, but not in evidence any more (only a large shovel). I felt quite uncomfortable with the volume of people and the lack of toilet facilities. Even if everyone is well-versed in LNT (which I doubt they all are) there’s only so many places you can dig a hole.

Andean Fox prowls around camp on night 1
We had hired a tent & sleeping mats for the trip. The tent was small, with negligible vestibule space. The mats were very thin. With no desire to spend 3 nights on the mats, combined with concern about how we’d go with the tent in the rain on day 4 and, concern about the mass of people at camp 2 (which was a lot smaller than day 1) led us to attempt to combine day 2 & 3, shortening the trip by 1 night. The Parks powerpoint presentation which everyone has to watch before starting, had 6 hours & 7 hours as the respective times for most parties, which meant we were looking at a 13 hour day. There’s plenty of daylight – sunrise around 5:30am, sunset at 9:45pm.

Our small hired tent. You can see the packs bulging in the front vestibule. Also note the wind barriers which were constructed all around the campsite

The very sheltered camp 1 is in the trees which are tucked behind a rocky finger to my left
So day 2 had us up at 5:30am and out of camp by 6:45am. Unfortunately we’d already seen a large string of people head off ahead of us. Unfortunately, because, very early on there is a Tyrolean traverse over Río Túnel. If you budget 5 minutes per person getting across it doesn’t take many people before you can be waiting for an hour. So despite all these people ahead of us we were amazed to get to it, and find we were the second couple there.
I think many people missed the route climbing up a waterfall and so had to backtrack. The first couple were a bit nervous so I was the first person across. It was a bit awkward to manage your pack as the landing spot is on slopey rock. It was much easier when someone else was there to help.
We had also hired the harness & gear needed for the Tyrolean – just one harness for the two of us. Ideally you alternate people sharing harnesses to maximise efficiency for everyone else. Let’s just say there wasn’t a lot of efficiency early on, but then a guy from the third party came across. He clearly had a lot of experience with Tyroleans and we got ourselves sorted. Tom was 4th across, and so we were then able to keep going.

Tom on the Tyrolean traverse over Río Túnel. The queue of people look on – top left you can see one person who’s not waiting and is braving fording the river instead.

The lone person fording the river rather than taking the Tyrolean. It gets a bit deeper before he gets out!

Views of the Tyrolean from upstream
Not long after the excitement of the Tyrolean the next challenge is passing the Río Túnel Inferior Glacier. But the ‘track’ leading up to that section is pretty faint, and I was employing all my route finding experience to pick our way efficiently along the slope of the mountain. I imagine you could take a lot longer through this section if you weren’t confident about picking a route. Given how lose the slope was I was very glad no one had caught up with us and so there was no danger of having anything knocked on to you.

On approach to the terminus of Río Túnel Inferior Glacier (on the left covered in dirt)
Passing the Río Túnel Inferior Glacier involves walking on the glacier for a ‘short’ period of time. The route changes each season so you’ve got to make your own way and decide when to get off. Early on the walking was easy as there were a lot of rocks on the glacier so plenty of grip, then it turned to straight ice and things started getting a bit sketchy. We bailed off onto the moraine – which was also a bit sketch, until we got high enough on it. Then it was a 500m slog to get to Paso del Viento (Windy Pass).

Tom walking on the Río Túnel Inferior Glacier – this section was easy as there were so many rocks there was plenty of grip

Tom walking on the Río Túnel Inferior Glacier – this section was getting a bit tricky and we bailed off not long after this photo
One of the key things for this trip is to know the wind forecasts for the two high passes, as they can be impossible at high winds. The wind was supposed to be gusting to no more than 28km/h so we were a bit surprised at the amount of wind we were getting hit with on the way up. Turns out most of it was coming off Río Túnel Superior Glacier and once we’d passed that it was far more pleasant!

Slogging out way up above the glacier
The top of the pass opens up to the really unique thing about this hike – views over the Southern Patagonian Ice Field. The views for the rest of the day were just outstanding. After a short morning tea break we descended to what is normally camp on night 2 (Refugio Paso del Viento).

Views over Southern Patagonia Ice Field – hard to capture the size! From near the top of Paso del Viento (Windy Pass)
Don’t be deceived by Refugio being in the name – it’s just an emergency shelter. We’d caught up to an American couple at the pass and they were doing the same as us, attempting to combine the two days. We both made it to camp 2 around 12:30pm, had lunch & assessed how we were going, and then were off again by 1pm. We’d caught one other couple but they were staying the night so they got best choice of the sites. There wasn’t a lot of space at camp 2 so I was glad I wasn’t going to be there if everyone from the night before made it through.

Approaching what is normally Camp 2, but in our case lunch
We were hoping to shave some time off the Parks estimates, but the next 4 hours were pretty much spot on. This wasn’t particularly surprising as there was little technical challenge in this section, and we aren’t breaking any speed records when it’s just straight-forward track walking. This four hour section was undulating walking alongside/above Viedma Glacier and was spectacular. It was also great because it felt like we were out there on our own (the Americans were a bit ahead of us most of the time). A late afternoon tea (5pm!) on Paso Huemul gave us the energy boost for the final section.

The views for the rest of the afternoon were just spectacular

Having a break and filling up water from one of the many glacial streams (needed to let it warm up a bit before you drank it!)

Looking toward Paso Huemul. A few walkers can be seen in the middle distance.

On our way to Paso Huemul. Viedma Glacier behind Tom.

Slogging our way to Paso Huemul. Viedma Glacier behind

Made it to Paso Huemul. Goodbye Southern Patagonian Ice Field/Viedma Glacier.

Down the other side of Paso Huemul
It is a notoriously steep descent (700m over <2km) down to camp 3. It started off pretty pleasant, but the lower sections were highly eroded. Some sections had ropes in place as you were just going down dirt banks with few hand or foot holds. It’s hard to see how this track can be sustainable in the long term given it’s popularity. This section was supposed to take 3 hours but given we’re pretty used to dealing with terrain like this we did it in less than 2 – making it into camp 3 (Bahía de los Témpanos) at 7pm. The most spectacular 12 hours of hiking I’ve done!

Negotiating the vegetation in one of the rare horizontal sections of the descent

One of the eroded sections of the descent. Hard to capture – this was one of the less steep sections.
Camp was packed so finding a site was a little tricky, but in the end we had a great spot. The photos make it look like we’re on our own, but there were probably 20 tents all pitched right next to each other in the trees behind me.
It’s not often you get to camp next to icebergs – they are noisy! We saw one crack in half while we were eating breakfast.

Breakfast watching the icebergs
The final day is the longest (if you do the 4 day version!), and potentially even longer if you can’t get transport at the end point. We both had very sore feet by this stage and really didn’t want to do the extra 8km slog into town if we couldn’t get a lift/taxi.
Compared to the prior days the final day doesn’t have the same wow factor.

On our way out – the weather looking somewhat ominous over the mountains.

Terminus of Viedma Glacier & Paso Huemul in the far distance
There are good views of the Viedma Glacier terminus, and the track is quite pleasant, but otherwise the highlight is another Tyrolean traverse – back over the Río Túnel. Given this comes close to the end of the track we thought queues might not be such an issue but we arrived to about 8 people in front of us. Four were with a guide and she was very efficiently getting them through.
The other three were very relieved when we said we had a pull cord with us as none of them did! You need a pull cord to retrieve the pulley that you go across the traverse with. This meant Tom ended up managing the pull cord for them (& me) and so no photos of me doing either of the Tyroleans. Fortunately I’d learnt my lessons from the previous day and was very efficient this time round.

Arriving at the second Tyrolean Traverse of the trip

Tom on the Tyrolean

The awkward dismount from the Tyrolean (though easier than the one from the day before)
The final 3km to Bahía Tunel Ferry Dock was a slog – hot and no wind (!). Fortunately for us the 3 we’d shared the pull cord with had arranged a taxi (not sure how as I had no phone reception) and it had just arrived when we got there. Tom ran (well, hobbled) over and asked the driver to come back and get us. One of the others spoke Spanish so was able to interpret. What a relief! 40 minutes later he was back and we were being driven to El Chalten
For reference in Dec 2025 that taxi cost us ARS60,000 using credit card / 50,000 for cash (roughly A$60). I imagine many shoestring backpackers would rather walk the extra 8km than pay that… but from our perspective it was a cost we’d take every time.

Very glad to be waiting for a taxi and not slogging another 8km to town
A great trip, though like many popular walks, I think its probably being loved to death.
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Our statistics (from GPS so including every up/down)
| Day |
Time (incl breaks) |
Distance |
Asc / desc |
Max Altitude |
Destination |
| 1 |
7 hours |
18.7 km* |
+1230/-985 |
1,060 |
Laguna Toro |
| 2 |
12 hours |
27.0 km |
+1850/-2250 |
1,428 |
Bahía de los Témpanos |
| 3 |
6.5 hours |
17.3 km |
+670/-670 |
517 |
Bahía Tunel Ferry Dock |
*includes the walk from our accommodation, and also wandering around/collecting water once we got to camp. Normally day 1 is quoted at ~15km.