Reflection and Resonance

We offer an innovative approach to peer consultation, where a unique setting and extraordinary experiences stimulate the senses—helping the brain shift from beta to more relaxed alpha states.

We invite you to immerse yourself in a truly distinctive experience by combining peer consultation, or in another word "intervision", with a scenic walk across the Hilversum Heath, an inspiring boat trip on the Loosdrecht Lakes, or sessions enhanced by carefully curated sounds that positively stimulate the nervous system through their purity. Our peer consultation sessions foster inner calm and resonance.

We are located in one of the most beautiful spots in the Netherlands, at the Stille Plas in Loosdrecht—offering breathtaking views, surrounded by birds and the quiet presence of nature. It is truly a peer consultation paradise.

Our theme: Reload your battery!

HOLISTIC & CONNECTING

The unique power of intervision or peer consultation, delivered through an innovative approach and enriched by the profound influence of nature, water, and sound bowls. What is it like to explore a personal dilemma together while being on the water? What impact does a walk across the heath have—on deep listening, and on learning how to ask the right questions?

This is where your journey toward inner calm and professional growth begins.

The essence of intervision in resonance

Welcome to IntervisieXL, a holistic form of intervision (or peer consultation) where resonance, energize, and rebalance are essential. Here we explain the power of intervision in innovative forms. We believe intervision can be more than simply discussing professional dilemmas in an office setting.

By integrating unique elements such as the sounds of handmade Tibetan singing bowls and crystal singing bowls, we offer a distinctive experience that goes beyond the traditional approach to intervision. We invite you, inspired by the tradition of Benedictine monks, to take a walk in nature and, in pairs, explore the deeper layers of a personal issue.

On the water, we find the calm needed to gain inspiration together and focus on the underlying themes of the presented dilemma.

Who is Intervisie XL intended for?

Our intervision program is specifically designed for professionals such as lawyers, judges, accountants, notaries, medical specialists, executives, and entrepreneurs. We understand that the mind is constantly “switched on” and that cognitive load can sometimes limit a broader perspective on personal dilemmas or workplace challenges.

In the rush of daily life, there is often a lack of space to step back and view matters from a different angle. IntervisieXL offers a new interpretation of reflection—and even meditation—with remarkable results. You engage in peer-to-peer exchange with like-minded professionals, sharing and discussing professional dilemmas through a structured and proven methodology.

The combination of work, nature, and an open mindset forms the core ingredients of IntervisieXL. It is about learning about yourself and from each other in a safe and supportive environment.

What are the benefits for you?

Wisdom emerges through encounter. Petra views dialogue and human connection as a fertile source of insight. Listening to one another—and to deeper levels of awareness—opens up new perspectives.

It is not about giving advice to each other, but about reflecting together and learning from within. The aim is to discover the question beneath the question—this is where Petra’s focus lies.

Intervision with her is by no means without commitment; it challenges you not only to share knowledge from a rational perspective, but to consciously go deeper in the search for answers. This requires openness of both heart and senses.

While this process demands energy, it also offers a profoundly enriching experience. Participants often report that sharing a personal dilemma within a closed intervision group feels like a “warm shower”—cleansing, safe, and deeply releasing.

Contact us and discover what IntervisieXL can do for you

"Yesterday I was clever, so I wanted to change the world.

Today I am wise, so I am changing myself"

Roemi

Walking intervision on the Hilversum Heath

This form of intervision is a proven method for reflecting together on work-related challenges. Movement and being in an outdoor environment help stimulate freer thinking, deeper and more attentive listening, and a faster arrival at meaningful insights.

The walks follow the Benedictine Method, for some time in silence and in parallel dialogue, often in pairs. Physical movement stimulates blood circulation to the brain, which typically enhances creativity and provides a fresh perspective on complex or stuck dilemmas.

Duration: 3 hours

Fee: € 375,00 excl 21% VAT per person

Registration is possible via what's app or by email.

More information

Intervision and Sound

This form of intervision uses sound to create calm, focus, and deeper reflection, and is both unique and highly impactful.

The warm tones, vibrations, and frequencies support you physically and mentally in releasing the demands and distractions of daily life.

Deeper listening, inner calm, and meditative awareness create space for new insights, letting go, relaxation, and rebalancing.

Duration: 3 hours

Fee: € 375,00 excl 21% VAT per person

Registration is possible via what's app or email.

Insight Through Water and Stillness

It has a healing and powerful effect on both body and mind. In addition, the energy of the water helps you connect with your emotions and supports you in letting go of what no longer serves you. It fosters trust in the natural flow of life.

We take you on board our captain’s sloop through the unique nature reserve of the Loosdrecht Lakes. On the water, we come together as one group.

Duration: 4 hours

Fee: € 500 excl 21% VAT per person

Registration is possible via what's app or email.

Register for a session

Office-Based Intervision

Intervision at our office takes place in a private setting at the Stille Plas, either outdoors at the large table or indoors with the same inspiring view.

In consultation, different intervision methodologies can be applied. Team coaching or individual guidance is also available as an option.

Free parking is available on site. Intervision can also be arranged online.

Duration: 3–4 hours | Online: 2-3 hours
Group size: 3–10 participants

Normal Rate: €125 per hour per person (excl. 21%VAT)

Online Rate: € 75 per hour per person (excl. 21% VAT)

Continuing education (PO) points may be available upon request and in consultation.

Individual Coaching sessions and Mediation:

€375 per hour (excl. 21% VAT)

Why us? Because meaningful change starts here.

In 2026, IntervisieXL delivers inspiration and tangible results.

This holistic form of intervision in nature is guided by the energetic and highly experienced mediator and coach, Petra Beishuizen.

For more than 25 years, Petra has been driven by a deep fascination with addressing root causes rather than symptoms. In her approach to problem-solving, she looks beyond the surface, focusing on emotional undercurrents, relational dynamics, inner alignment, and the role an individual plays within the system in which they operate. The integration of emotional, mental, spiritual, and energetic dimensions forms the foundation of her solution-oriented and creative methodology—an approach she has refined and successfully applied over many years in her practice as a lawyer and mediator.

During the COVID period, Petra began experimenting with an innovative form of online intervision and mediation. What started as an adaptive solution has proven to be both highly effective and still in strong demand today, particularly for those unable to attend in person. It added a valuable new dimension to her practice, demonstrating that even through a screen it is possible to reach the deeper essence of a dilemma.

Petra can be described as an entrepreneurial pioneer across multiple fields, combining disciplines and maintaining an eagle’s-eye view over complex professional landscapes. Her passion lies in sharing this holistic approach with others. She believes intervision is a powerful tool for personal growth and development—both for teams and individuals. It can have a profound positive impact on organisations by fostering connection and deeper understanding of one another’s backgrounds, making ambitious goals more achievable. Intervision creates space for vulnerability while simultaneously strengthening resilience.

Petra brings decades of experience as a business coach, former lawyer, mediator, and lecturer at the professional legal training institute. Her life philosophy is rooted in holism, integrating emotion, rationality, physical awareness, and spirituality as one coherent system. In the corporate world in particular, she believes it is essential to bring these dimensions together.

This approach is decidedly not “airy-fairy,” but rather innovative, structured, and systems-oriented.

As a former equity-partner in a top 50 law firm, Petra has extensive experience working with entrepreneurs, large corporations—including executive boards and supervisory boards—family businesses, and foundations, as well as professionals such as lawyers, notaries, medical specialists, consultants, and accountants. In addition, she has worked extensively with individual clients and is an EFT-trained mediator.

She consistently combines high-level professionalism and business acumen with a deeply human-centered approach, always attentive to emotional dynamics, personal development, and empowerment. Intervision is one of the key instruments she uses in addressing group dynamics and personal growth within organisations. Her systemic approach recognises that everyone has a place, ownership, and responsibility within a system—and explores whether that position still fits, both for the individual and in relation to the team.

“He who speaks, does not know everything. He who listens, learns from many. In silence, insight is born.”

Lao Tze

Intervision – flexible formats for deeper insight

Experienced guidance

Petra Beishuizen guides you with a wealth of experience drawn from her background in law, coaching, and mediation. She is an accredited intervision facilitator.

With her innovative approach, she brings reason, compassion, and direction into balance. As a seasoned expert within the corporate world, she knows how to bring attention to the whole person—caring for mind, heart, emotional dynamics, and physical well-being.

Holistic approach

Intervision or peer consultation in nature offers a unique holistic experience, combining diverse elements, an innovative format, and a renewed setting.

It resonates, deepens reflection, and promotes relaxation.

In addition, this approach supports clear decision-making, openness, and genuine connection—encouraging a perspective that considers the whole person: mentally, physically, emotionally, and socially. This broader awareness enriches conversations and brings greater depth to the dialogue.

Attention to the whole person, as well as to energy and well-being, has a positive impact on performance and overall effectiveness.

Professional network

Meeting each other within the same professional field, yet not always within the same office or organisation. Asking questions, listening with full attention, and sharing personal and professional dilemmas in a safe and professional setting—learning from one another and engaging in meaningful reflection.

Resonating through sound and contemplation. Fostering team building, empowerment, and leadership development.

Attention to yourself as a human being. Opening up, receiving, and allowing space for self-acceptance and self-love.

Growth.

Participants and Costs

Group size Intervision/Peer consultation

Each group consists of 3–10 participants.

The standard rate is €125 per hour per person (excluding 21% VAT).
Continuing education (PO) credits may be available, but must be requested and arranged by participants themselves.

Individual coaching

An individual intervision/coaching session is €375 per hour per person (excluding 21% VAT).

Online intervision

Online intervision lasts a maximum of 2 hours per session and is €75 per hour per person (excluding VAT).
A minimum of 3–10 participants per group is required.

Mediation

Mediation is with 2 or more participants.

The shared rate is € 375 per hour (excluding 21% VAT)

Intervision locations

Office-based intervision, sound-based intervision, and water-based intervision take place at:
Nieuw Loosdrechtsedijk 227, Loosdrecht (1231 KV), the Netherlands

Free parking is available on site and in front of the premises.

Walking intervision locations are agreed upon in consultation.