Outdoor Experience Heroes & Heroines Sunday 25 January 2026 | Oirschotse Heide. Small-scale Outdoor Experience for men and women who feel: I want to be sharp, powerful and clear again, physically and mentally.

🔥 JOIN THE OUTDOOR WINTER EXPERIENCE HEROES & HEROINES EDITION SUNDAY 25 JANUARY 2026

OUTDOOR EXPERIENCE

Escape the daily hustle and bustle and invest in yourself.
The Outdoor Experience Heroes & Heroines Edition is for busy men & women
who want to become physically and mentally stronger. No distractions, no stress,
only heroic challenges in nature, where you build strength, energy and focus.

Exercising outdoors means more than just getting fit. It gives you clarity, reduces stress and provides balance in a hectic life.

Train smarter, feel stronger and perform better - both in business and in life.

Registration closes: ⏳ Thursday 22 January 8pm
Maximum of 20 participants. Full = full.

Claim your spot! Early Bird €79 (expires 17 January! Then €99))
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Strong together in nature

For busy men & women who want to grow physically, mentally & emotionally in 2026.

Programme (± 3.5 hours, times approximate):

  • 08.15h Reception & Landing. We start quietly. Assignment to land in your body, get to know the group and release tension. Immediately go 100% all-in!
  • 9.30am Physical challenge appropriate for winter. We go deep, not to demolish, but to: train focus and experience resistance. Work together and reconnect with your personal power. This requires some basic fitness.
  • 11.30h Closing assignment & concrete action plan. We conclude with an assignment that will: give you clarity, make you feel where you stand and give you direction for the period ahead.

For whom.

For Heroes & Heroines who:

Lots of wear.
Often being "strong".
And feel that it is time to pause for a moment.

Not floaty.
Well really.
Raw.

Registration closes:
⏳ Thursday, January 22, 8pm
Maximum of 20 participants. Full = full.

Yes, I want this!

These heroes stepped in and took up the challenge with us

Lukas van Welten
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Marc first conducts a comprehensive exploratory interview to know exactly how he can best help you achieve your goals. He is knowledgeable about exercises for specific muscle groups and figure, as well as nutrition and a healthy lifestyle in the full sense of the word. He is good at writing out a varied movement, exercise and eating plan, and showing and explaining how to perform individual exercises correctly and safely. By working with Marc, you will improve your stamina, strength and health.
Jos Verstappen
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Marc is a fine personal trainer! In the first period, he not only looks at exercises, but also at nutrition and other things that affect health. From that comes a tailor-made training schedule, in my case one for strength and HIIT for fitness. And life tips such as "take the bike more". One of my goals was to exercise more often and get fitter. So far, I have definitely succeeded!
Martijn van Tilburg
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Together, Marc sets up a personal and targeted plan with you. He gives you good advice and also puts more focus on your health in general. He really takes the time for you, so he really knows how to motivate you.
Martijn van Tilburg
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Together, Marc sets up a personal and targeted plan with you. He gives you good advice and also puts more focus on your health in general. He really takes the time for you, so he really knows how to motivate you.
Ron Rutter
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What is enormously nice about training Marc is that he really takes the time to tailor a personal programme to you. Both physically and mentally. Training outdoors is very nice. Plus point: he simply takes the weights and kettlebells with him
Subahan Tac
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I enjoyed training with Marc for over a year. I was able to learn a lot in terms of sport, lifestyle and mindset. I am very grateful to him for that. Marc is proactive, knowledgeable and motivated to help his clients reach their goals. Thank you too for your time and again so much for everything I said at the end of the training. You genuinely helped me move forward.
Maarten Jansen
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Muscle pain in places where I thought there were no muscles. Still reminiscing two days after training with Marc, wonderful experience, highly recommended
Theo Martens
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The outdoor experience was a great experience. The training was intensive for the mind and body but after the experience it was totally worth it. We went home with a good feeling.
Maarten van Veen
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Great day in the Oirschot woods with Marc. Definitely recommended!
Jorrit van Willigen
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Short powerful . And very intense, would definitely want to do something like that annually though, the outdoor Experience, and Marc is very open and approachable. Highly recommended!

OUTDOOR EXPERIENCE EVENT

Edition Heroes & Heroines
€99
€ 79 Early Bird (Note: valid until 17 January 2026!)
  • Physical, mental & emotional challenges.
  • Silence, nature, focus.
  • Reflection, breathing & conversations that matter.
  • Goodie bag including whole foods.
  • Concrete action plan for 2026.
🔥 Yes, this hero(s) goes 100% all- in!
Highly recommended!

About 37degreez

37degreez helps men who carry a lot to regain leadership over their physical and mental health.

As part of a broader health revolution, we work with people who want to take responsibility for themselves, their energy and their environment.

Via outdoor training and coaching in and with nature we combine physical challenge with mental acuity.

We reduce stress, restore balance and build sustainable strength.

We work data-driven (including with measurements around stress and recovery), so that choices are not based on feelings alone, but on insight.

Not harder.
More conscious, stronger and with more direction, though.

In association with:
🤝🏻 Personality.co.uk
🤝🏻 Taste Wollerich
🤝🏻 ALS Foundation Netherlands
🤝🏻 Trees for all Foundation

Photos/videos:

  • Isabella Verduyn Photography.
  • LINK Photography.
  • New Seals Productions.

SOCIAL

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CONTACT details

Marc de Winter
Mail: marc@37degreez.com
Whatsapp: +31- 6- 48 40 05 30
KVK 72689870

SBI codes
– 85592
Corporate education & training
– 85599
Tutoring, training & education

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