Certified Wim Hof Instructor, Registered Nurse & the “IceNurse”
Hi, I'm Bas.
Why Medicine and Refrigeration Go Hand in Hand
To many people, an ice bath looks like an extreme test of courage. To me, it’s one of the most effective tools for understanding and regulating the nervous system.
As a certified nurse and emergency care specialist, I know exactly how the human body reacts to stress. I understand the physiology behind breathing and the sensation of cold.
That’s exactly why I chose the Wim Hof Method: it’s not based on empty promises, but on scientific studies and proven facts. What matters here aren’t claims, but biological responses.
I’m not a guru who promises miracles. I’m a practitioner who helps you apply these proven techniques with confidence so you can become healthier, calmer, and more resilient.
Why I know it works
I know what it's like to be in a hospital bed not only from the perspective of a nurse, but also from the patient's perspective.
In 2019, life put me to the test: I was diagnosed with Crohn’s disease (an autoimmune disorder) and high blood pressure. Suddenly, I was the one who needed help. Although medication is important, I didn’t want to accept that an illness would dictate my daily life. I wanted to take active steps to change things.
That’s how I discovered cold therapy and breathing exercises. What began as an experiment became my anchor. These techniques not only helped me alleviate my symptoms and lower my blood pressure, but also restored what mattered most: my trust in my own body.
Today, I lead a stable life, I’m a father, and I’m full of energy. IceNurse was born out of this experience. My mission is to create this “safe space” for you. So that you, too, can feel that everything you need to heal is already within you.
The Turning Point
Diagnosis & The Start of My Own Journey into the Cold.
Workshop Participants
As a certified Advanced Instructor, I have guided over 250 people safely through the Wim Hof Method—from breathing and mindset to cold exposure.
Workshops led & safely facilitated
From complete beginners to experts: I’ve had the privilege of guiding people in 7 different countries and from over 20 cultures.
What a wonderful way to spend a morning with like-minded people while Bas guided us all through the basics of the Wim Hof Method.
“Don’t forget to smile” was his only advice as I tried to take it all in—submerged in ice-cold water. And I smiled.
Thank you, Bas.
Gorka Aitor Vázquez, San Sebastián
A very well-organized event. Bas handles everything with great sensitivity and patience. I felt very well taken care of the entire time.
Pia Suter
Last Sunday, I attended the Wim Hof Method Fundamental Course, and I can honestly say it was an unforgettable experience. I would especially like to express my gratitude to the fantastic instructor, Bas Metsemakers. His knowledge, presence, and enthusiasm took the workshop to a whole new level.
Bas radiated a positive, infectious energy that inspired everyone to give their best. His passion for the Wim Hof Method was clearly evident throughout the day and made the entire workshop deeply engaging and motivating.
During the workshop, I learned so much. The breathing techniques and cold exposure exercises were both challenging and rewarding. Bas guided us with clarity and confidence, helping me gain better control over my body and find greater balance. I initially expected to feel a strong resistance during the ice bath, but surprisingly, I quickly found a sense of calm in the cold—and even began to enjoy it.
I wholeheartedly encourage anyone considering this workshop to sign up. It’s a unique opportunity for both physical and mental growth, and the Wim Hof Method can have a powerful positive impact on your health and well-being. Bas Metsemakers is an outstanding guide and the perfect person to lead you on this journey.
Thank you, Bas, for this valuable experience and for such a strong and inspiring start to this incredible journey.
Ching Ting Li
Certified Advanced Wim Hof Method Instructor
Certified Emergency Medical Technician (NDS HF) -
SVEB Clinical Instructor - Certified Advanced Oxygen Advantage® Instructor
- CAS Purpose Driven Leadership - ACLS
