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Trek a little visited area with a high diversity of fauna and flora

We start from the village of Olleros, entering the trail via the Rurec Valley with a river passing through that has Tararhua Lake as its source. Later during the trek, we cross over the Yararua Pass with spectacular panoramas that include the surrounding mountains. The serene and blue Rajucolta Lake (or Tambillo) is surrounded by vegetation up to the foot of mount Huantsan (6,395m). The biodiversity of the Andean flora and fauna that can be encountered in the Rajucolta Valley makes nature an even greater part this trip.


US$ 0-.00 /person


Huaraz / Olleros (3,450m) / Quebrada Rurec (4,250m)

Our expedition starts from the city of Huaraz, departing with our private transport in a southerly direction to the village of Olleros (3,450m). We pack our backpacks to start ascending through the valley to the entrance of Quebrada Rurec. The trail leads across the plains between the two huge rock walls, partially covered in vegetation, to the campsite in the deep valley.

Trail Note

7 – 8 hours trek / 15 km / elevation change  (+800m)

Quebrada Rurec (4,250m) / Tararhua Lake (4,480m) / Tararhua Campsite (5,000m)

After breakfast we start our walk ascending to Tararhua Lake at 4,480m with its rich colours and an area overlooking glaciers that invite us to a well-earned rest. Continuing from here, we ascend some more until we get to our campsite at 5,000m.

Trail Note

7 – 9 hours trek / 19 km / elevation change  (+750m)

Tararhua Campsite (5,000m) / Yararua Pass (5,200m) / Rajucolta Lake (4,250m)

Today our trek takes us along a cliff path hardly visible, up to the Yararhua Pass at 5,200m. As always, this bit of hard work is rewarded with stunning views below the imposing mountain Huantsen which at 6,395m is the third highest in the Cordillera Blanca. That’s not all, we also have views of the other peaks like Rurec, Alpichpunta, Uruashraju, Cashan and Huamash. Trekking further, we descend into the Rajucolta valley with its high wall until we finally reach Rajucolta Lake.

Trail Note

8 – 9 hours trek / 18 km / elevation change (+200m / -950m)

Rajucolta Lake (4,250m) / Quebrada Pariac (3,727m) / Huaraz

The outstanding coloured Rajucolta Lake surrounded by greenery that characterises the valley, with its vizcachas and other animals bids us “Adios”. During our final trek we can appreciate the views and natural beauty of this valley till we reach Onqki at 3,727m from where we return to Huaraz with our private transport.

Trail Note

4 – 5 hours trek / 12 km / elevation change (-523m)

Price details coming soon

The program includes:

  • Professional and bilingual internationally certified mountain guide
  • All meals during the expedition
  • Private transportation round trip
  • Camping equipment
  • Cooking equipment
  • Entrance fees to Huascarán National Park
  • Cook & assistants
  • Donkeys and muleteers / mountain assistants

The program does not include:

  • Climbing equipment
  • Personal equipment
  • Personal expenses & tips
  • Travel Insurance
  • Items not mentioned above in “Includes”
No. of PersonsUS$ /person


The roads to and from the Huascarán National Park are dirt roads and some sections of this road might be very bumpy.

Trekking trail

  • There are no toilets along the trail at any point.
  • Be aware that there may be some crossings of small rivers and streams that do not have any bridges but only large rocks serving as stepping stones.


It is important to do a few days of acclimatisation day treks before embarking on this stunning yet difficult trek. If you have just arrived from another high altitude location and you’re well acclimatised, discuss with us the feasibility of doing it on your first full day.

Recommendations for Best Seasons

All year around. The best time is from mid-April to late September or early October.  April, May and June are the best months for lovers of flowers and green landscape. July through August are the best months for blue sky & also an excellent period for photographers (warm colours and clear blue skies are great!). From September to April you get a mixed sunny and pretty cloudy landscape.


The entire Cordillera Blanca has a semi-dry and semi-cold climate, with an average maximum temperature of 23.9° C (75.0° F) and a minimum of 1.1° C (33.98° F). The climate is very unpredictable, even in the dry season it can rain. During the days it can vary from hot to very frigid temperatures, included rain and strong winds or snow over 4800 meters above sea level. It usually starts getting cloudy more often in early September. October and November are the months when after 2-3pm you can count on afternoon showers.

**Note: List of required equipment for the trekking expedition. Please confirm with us which items are included in the price.

**For more equipment lists and the Equipment Rental Catalogue – click on EQUIPMENT

Trekking Gear

  • LED headlamp
  • Trekking poles
  • Trekking backpack
  • Day pack
  • Duffel bag

Camp & Cooking

  • Sleeping bag
  • Sleeping bag liner
  • Sleeping mattress
  • Tent
  • Kitchen/dining tent
  • Stove & gas/fuel
  • Cooking utensils
  • Expedition crates


  • Trekking boots
  • Waterproof trousers
  • Fleece jacket
  • Down jacket
  • Rain/Hardshell jacket
  • Rain poncho
  • Light liner gloves
  • Hardshell/insulation gloves
  • Beanie/wool hat

Available for purchase  

*subject to availability

  • Headlamp
  • AA and AAA batteries
  • Water bottle
  • Water purification tablets
  • Cooking gas
  • Light liner gloves
  • Beanie/wool hat
  • Stainless steel flask
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