2-day ascent to Castor and Pollux near Zermatt

Join internationally-qualified guide Herbert on a 2-day climbing trip and ascend the classic twin peaks of Castor and Pollux.




Trip Duration

2 days

Mountain Range


People per Guide

2 people

Trip Level


Offer Period

Jul, Aug, Sep

Type of Trip



  • Conquer the classic mountain range in Switzerland.

  • Experience the alpine summits of Castor and Pollux.

  • Take in the fantastic views around the famed town of Zermatt.


Join me on this exhilarating ascent to Castor and Pollux, which offers a classic mountaineering experience while conquering 2 giants that soar beyond 4,000 meters.

The 2 giants of the Pennine Alps are named after the Gemini twins from Roman mythology.

Castor is a mountain that borders the Swiss valley of Valais and the Italian valley of Aosta. It stretches to 4,223 meters and is connected via a pass to its slightly smaller twin peak of Pollux, that measures 4,092 meters.

The twin mountains stand closely to Zermatt, the famed mountaineering town that lies at the feet of Switzerland’s largest peaks.

We will start our climb on Klein Matterhorn (or Little Matterhorn), whose peak is at 3,883 meters. From here we will ascend farther to the first twin peak of Castor before retiring for the night in the Val a’Ayas refuge.

On the second day we will conquer the second twin peak of Pollux before returning to the Klein Matterhorn.

Due to the level of difficulty of the ascent, potential climbers are required to have great stamina, physically fit for high altitude exposure, and already a competent climber that can use crampons.

Get in touch now to reserve your place in one of Europe’s most stunning mountain scenery and conquer Castor and Pollux, two giants of the Pennine Alps.

Please note that you can also choose to climb one of the mountains in a 1-day trip. Let me know if you are interested in this option.

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Price per person

Group of 1
2060 CHF

Group of 2
1080 CHF


Price includes

  • Guiding fee
  • Accommodation
  • Meals: Breakfast, Dinner

Other details

Skill level required


Fitness level required



Val d’Ayas refuge.

More info

Compulsory equipment: rucksack (30 litre), mountaineering boots, climbing seat harness, crampons with front points, steel, adjusted, ice axe, head torch with spare battery, touring trousers that are waterproof, breathable jacket with hood, fleece jacket or jumper, gloves, thermal underwear, shirt, socks,warm hat, sun hat, sunglasses with side protection, sun screen factor >25, lip balm factor >15, flask or water bottle, about 1 litre.


About the Guide


I am a nature lover who made his hobbies and passion into his profession. I possess only international recognized qualifications. As I am active in the mountains the whole year round my goal is to complement the programmes of the local organizations. My desire is to share with you my joy on the mountains, my knowledge, my experience and to make your stay in Zermatt to an unforgettable experience.

In the following pages you will find a few suggestions and ideas for your holiday in Zermatt. If my ideas or suggestions do not meet your demands, please do not hesitate to let me know what you would like to do and I will create your own personal programme. I am not only active in Zermatt but also everywhere where outdoor activities can be done. It would be a pleasure to accompany you safely and competently in the mountains.



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