Spring in the Solar Testfield

This 12-day hands on time will offer you a community experience with work and study, an introduction to the Healing Biotopes Plan, and an insight into the foundational ideas and different areas of our work – from technology to spirituality, from global peace work to sexuality and love. This time will have a special focus: we will work in the solar Test Field and prepare it for a shining season.

“In order to change an existing paradigm you do not struggle to try and change the problematic model. You create a new model and make the old one obsolete. That, in essence, is the higher service to which we are all being called.”

Buckminster Fuller

Program Details

This seminar will be guided by a team connected to the Test Field. In the mornings, we’ll be doing work like refurbishing the secondary mirror of the big Scheffler reflector (metal and painting), fixing the sun trap of the Scheffler oven, painting the little walls with lime – and many other details that make a place functional, beautiful and homely. By doing this, we’ll get to know the solar cooking possibilities and the basic idea of the Test Field in more detail.

In the afternoons, we’ll look into the basic thoughts of the Healing Biotopes Plan and the main areas of Tamera: What is peace work? What are Healing Biotopes? How can people live together in truth and trust? We’ll also experience Forum and you’ll get a first glimpse into community life in action.

You’ll explore:

  • the “Healing Biotopes Plan,” or why, despite global catastrophes unfolding, we still see a possibility for global healing
  • what a “Healing Biotope” is
  • our research findings in community, sexuality, love, partnership, spirituality, art, healing, and cooperation with all beings
  • contact with beings that do not speak our language, while inquiring about the intelligence and unity of all life
  • the qualities of animals and your very own connection to them
  • a life where animals are our cooperation partners.

The program will be composed of: 

  • presentations and Q&A sessions with different wisdom holders from the community
  • studying together, exploring thoughts and experiences that inspire us
  • guided tours and visits to special departments, e.g. our Children’s Place, the Solar Test Field and Water Retention Landscape
  • spaces for deeper conversation and community building among the participants
  • experiencing community building with Forum
  • exercises to experience connectedness and true contact
  • inviting dreams
  • participating in events for the whole community, e.g. our Sunday matinee, the Ring of Power and Political Cafes.


Sliding Scale from
€440 to €730
(including seminar fee, board & accommodation)

Why are we using a sliding scale?

Please consider applying for or donating to our solidarity fund if you can’t pay the lower end of the sliding scale or want to support others.

Our invitation to Portuguese nationals.

Payment Policy

Once you have filled out the registration form, we will send you an email with instructions on how to pay.
Please pay the full amount in advance.
If you are not able to pay the full amount in advance, please note that in order to confirm your registration, at a minimum, you must pay a non-refundable registration fee of €100.


Dormitories, own tent, or own van.
A room in the Guest House can be booked at an additional cost.


Vegan full board



Arrival and Departure

Please arrive the day before the course begins and depart the day after the course finishes.


Please note that it’s not possible to bring children to this course.


Please note that it’s not possible to bring pets to this course.

The Team