About The Synthesis Institute

Mission & Vision

Synthesis is committed to safely, legally, and effectively stewarding psychedelics into modern culture through our use of psilocybin mushrooms (or truffles containing psilocybin in the Netherlands). In our professionally curated settings, this remarkable organism can be an agent of life-enhancing experiences.



Using our integrative approach to transformative wellness, we combine leading-edge research with ancient wisdom traditions, rituals, and spiritual practices to curate a potent container that has the potential to catalyze change.



Led by professional facilitators, Immersion Retreat integrates psychedelic education, workshops, open-dialogue, breathwork meditation, sound, psychedelic ceremonies, and integration with the aim of restructuring disempowering thoughts.

Upcoming Retreats at The Synthesis Institute

Venue & Amenities

Venue & Amenities
Venue & Amenities
A/C in Rooms icon A/C in Rooms
Free Wifi icon Free Wifi
Spa icon Spa
Sauna icon Sauna
Pool icon Pool
Towels icon Towels
Free Parking icon Free Parking
Kitchen icon Kitchen
Tour Assistance icon Tour Assistance
Hot Tub icon Hot Tub
Coffee/Tea icon Coffee/Tea
Cafe icon Cafe
Restaurant icon Restaurant
Fitness Center icon Fitness Center
Yoga Studio icon Yoga Studio
Housekeeping icon Housekeeping
Bicycles For Rent icon Bicycles For Rent
New Eden is a sanctuary in the Dutch countryside where people come to heal and reconnect with themselves. Guided by experienced facilitators, it’s a safe, intentional space to journey inward and return home with greater clarity and calm.

Meals

Menu
Menu

Menu Types

We provide tasty vegetarian and organic dishes. You will have the chance to savor a diverse menu with various options. Gluten-free choices are available, and we can accommodate your allergies as well.

Getting Here

Location icon The Synthesis Institute, Hemrik, the Netherlands

Directions

You can reach the retreat center easily by taking a train from any part of the country to Heerenveen, and then taking a taxi to New Eden. Alternatively, you can also use taxi services such as Uber, Bolt, and private taxi companies that operate in the country.

Customer Reviews

5.00 out of 5.0 average rating

5.0
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Deep and rich educational experience
The synthesis learning will stay with me as a guide and resource centre for a long time to come, perhaps or even probably lifelong. The assignments were practical and thoughtful in the way they built on each module of learning. I found the curriculum, with its monthly focus on each area of psychedelic facilitation practice through each of the four lenses, provided me with an enjoyable and reliable cadence. The content was so rich and diverse, generously delivered by such different wise, experienced people, and considerate of many different perspectives that I felt it was expanding not only my understanding but also my toolbox of things to use straight away as well as learn more about. As the year progressed I felt more confident in describing my place in this field, where I have come from, where I may be headed and how my world today integrates with that. There was no pressure to perform or know, in fact the invitation was to remain as long as I wanted to be in liminality for all that could be learned and experienced there. I feel I have worked alongside and become more part of a network of professionals who care about what is most important - safety, ethics, keeping the dialogue open and reciprocity, amongst other things. It really has been a wonderful learning experience, which has expanded my repertoire and skills. Thank you

5.0
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Immersion Training Retreat
I took part in the Immersion Training Retreat as a co-facilitator in training and as a participant https://www.synthesisinstitute.com/immersion-training-retreat. It was an outstanding experience. The three guides Lesley Joy Quilty, Hanneke Shots and Léla Mosemghvdlishvili were outstanding. They truly embody and represent want I wish to be someday. I consider myself blessed and priviliged to have been an active witness as they held space and dealt with challenging situations. The variety of workshops, exercises and rituals added to the wealth of knowledge and experience I was allowed to get. - Thank you Synthesis, thank you Lesley, Hanneke and Léla. - The New Eden Retreat Center is a wonderful and very practical location for this retreat, a great setting.

5.0
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Skilfully facilitated, safe, transformative, and playful.
This was my 2nd retreat with Synthesis. I have been working with psychedelics/plant medicines in intentional settings for around 4 years, and recreationally for around 15 years. I would recommend Synthesis retreats for anyone new to psychedelics, as well as more experienced journeyers who are curious to explore their relationship with medicine in a different than might be found in underground or indigenous contexts.

The facilitation team are highly skilled, holding perhaps the safest container I have experienced on a retreat. They're also loving, warm, down to earth people who are just as committed to connecting with the group as they are facilitating the journey itself. The retreat centre is so cosy, and situated in the middle of woodland. It's a very soothing place to be, and the food is the best I've ever had on any retreat (genuinely mind blowing!!!).

One of the most valuable aspects of the retreat was how well rounded and diverse the shared palette of skills, practices, experience and worldviews of our facilitators was. Between them, we had the support, perspective, and holding of a psychotherapist with specialist training in psychedelic work; a practitioner with direct and ongoing training in indigenous medicine traditions; and a third practitioner with a foundation in a range of meditative practices, in academia relevant to this work, and having extensive personal experience with various medicines. This range informed a deep and rich preparation, journeying, and integration, offering us many ways of relating to our experiences beyond just the word.

Thanks to this approach I have been able to explore my subjective as well as and the group dynamic, through movement, sound, meditation, breathwork, creative expression, and of course psychedelics.

I'm a student with The Synthesis Institute and I have now journeyed as a participant, as well as in an apprenticing role. I highly recommend Synthesis retreats for anyone curious to explore intentionally with psychedelics in a safe environment, guided by experienced, caring, and skilled practitioners. And I highly recommend their training to any aspiring practitioners - I have found it to be thorough, inspiring, and very nurturing to my journey along this path.

5.0
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Comprehensive Full Package
The Immersion program by The Synthesis Institute is a comprehensive program encompassing a multi-day stay in a very quiet and peaceful place with lots of options to realx and become grounded. The food is very tasty and healthy (thank you Tara!), but most importantly the staff and the program are really sophisticated and helped me in my healing process. The program was designed by the most leading academic institutions but also traditional elemts haven been implemented. Highly recommended if you want to dive deep into your inner self and find healing.

5.0
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In awe
I joined Synthesis for a 5 day psychedelic retreat. It was an extremely moving experience. The facilitators were amazing and organised the retreat in a way to help participants both navigate difficult experiences and draw meaning from them. The venue and the food were outstanding and provided the exact nourishment that was necessary to enable spiritual growth.

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