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.
HOLOS is a private retreat and residency space located in the lush Diamante Valley of southwest Costa Rica. This sacred space is lovingly stewarded with deep care and integrity, offering a community-centered environment dedicated to helping individuals find wholeness through connection with nature, intentional living, and a focus on embodied, evolutionary wellbeing.
Meals
Menu Types
Vegan
Vegetarian
Pescetarian
Ayurvedic
Includes Meat
Organic
Gluten Free
Dairy Free
Nut Free
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.
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
Verified
Immersion Apprenticeship Retreat
This summer, I had the privilege of attending the immersion retreat from Synthesis in the Netherlands as an apprentice. It was a profoundly beautiful and insightful experience that provided invaluable lessons for my future practice as a psychedelic practitioner. The facilitators were experienced and very kind, creating a safe and supportive environment throughout the retreat. The food was also outstanding. I wholeheartedly recommend this immersion retreat.
5.0
Verified
Amazing experience, people and team!
As a complete novice to entheogens/psychedelics it was amazing to see how the retreat catered to those of all levels, helping a rookie like me feel very safe & secure while still keeping those with more experience really engaged! They do a great job of curating groups of awesome people, while our group was very diverse there was no drama or issues.
5.0
Verified
Fantastic!!!
I attended the Synthesis Immersion Retreat as both a student and a participant. The facilitators were top notch in every way: highly experienced in indigenous and western medicine traditions, live music as well as playlists, breath work, compassionate caretakers, deeply present to each of us. Their teaching was clear and relevant. I learned so much about facilitating medicine journeys, and I also dived deep into my own journeys.
In addition, the location is gorgeous. My only complaint is that the tents were so hot during the day (nights were fine), even though they were air conditioned, that you really couldn't hang out in there. But no problem because there are lots of beautiful spaces to hang out by yourself or with others. The waterfalls are fantastic, and fun getaways from the "work."
Food was amazing, and the chefs were so friendly and always committed to meeting any special dietary needs.
I highly recommend this retreat.
5.0
Verified
One of the best weeks of my life
I can’t recommend this retreat highly enough, from the pre-retreat preparation to the post-retreat integration and everything in between, the details and delivery were immaculate. The venue was beautiful and the ceremonies were treated with reverence and respect. The leaders and facilitators created a safe space, and provided a range of complementary activities between the ceremonies. Thank you Synthesis 🙏
5.0
Verified
The experience is incredibly well organized, held, safe, and beautiful
This has been a significant experience for me. If you ever get the opportunity to participate, don’t even hesitate. The experience is incredibly well organized, held, safe, and beautiful