Welcome to the CFAR Alumni European rEUnion!

UPDATE regarding 2021 dates

We are feeling cautiously optimistic about this fall and so we are announcing the new date for the rEUnion. We are not yet selling tickets and we recommend that you do not make any non-refundable travel arrangements. We will keep you posted on how things develop in the next couple of months. If the trend of vaccinations continues, we expect start sell ing tickets some time in May.

We have not yet decided on what the COVID protocols would be for the event. We assume that it will be combination of people being vaccinated and testing on site. Again, this will be specified later.

Below are the specifics of the 2020 event. I will leave them here for context but we are not yet selling tickets!


  1. We are back back!
  2. We have different accommodation options, read about the difference here so you can reserve your preference if you have one.
  3. We are kid and pet friendly but we need to know ahead of time so please state this in your registration.
  4. Our capacity is 110 tickets, first come, first serve. 
  5. If you have questions, contact Irena: [email protected]

Schedule and activities

Code of conduct


The reunion is an opportunity to engage with and develop new rationality techniques, meet people from different workshops, give talks, coordinate and get outdoors.

It is an unconference where the participants themselves create the program. We will help coordinate some of the activities but it is up to you what you organize and what you participate. Stuff that will likely happen during the weekend:

  • Updates to CFAR’s core curriculum 
  • Hamming Circles, and every other type of circle
  • Pair debugging
  • Very cool people
  • Hikes in the woods
  • Football, volleyball, tennis, basketball, minigolf and archery
  • High ropes course and slack line
  • Lounging by the pool

And much more!


Sporthotel Kacov [kaa-ts-off]

Kácov 307
285 09 Kácov

Based on last year’s feedback, we have chosen a new venue which is a much better fit for our needs – has more rooms for activities, lots of opportunities for being outdoors, higher capacity and is more understanding of our quirks.

It is also much closer to Prague and more convenient for travel. We will provide a bus from the center of Prague which will get there in 45 minutes.


There are 2 types of accomodations – hotel and cabins.


Regular hotel rooms with two beds (all can be arranged as a queen or as two single beds), small desk, TV and en-suite bathroom. Rooms are located in the main building which contains many of our activity rooms and may be sometime noisy – both as activities will be happening there and also people will be likely walking and talking on corridors.

Ideal for: couples, those who will be more social and stay up longer, people with movement restrictions.

The internet will be the strongest and fastest in the hotel.


Have 2 rooms upstairs for 2-3 people each, downstairs has a small couch, fireplace, kitchen with a microwave, kettle and a fridge, bathroom.

Ideal for: people who want to have access to and prepare their own meals, families and larger groups of friends who want to stay close to each other, people who wish to have a quieter place to themselves, people going to bed early.

They are a bit spread out so you should be comfortable walking around from the cabin to the main building (~50-120m depending on the cabin).

Most of the cabins are not covered by the hotel internet signal. We will set up routers in the cabins so that there is some internet in the cabins but it will not be as fast and we would prefer that people do not stream or download large amounts of data.

We will provide all meals during the weekend based on your preferences (you can specify this in the registration form). We are generally able to accommodate vegans, vegetarians, omnivores and gluten-free diets. If you have special allergies or needs regarding food, let us know in the registration form so we can make arrangements with the venue.

Schedule and activities

The rEUnion will begin with dinner at 6pm on Friday, September 24 and conclude on Monday, September 27, after breakfast at 9am

While the rEUnion is rather far away, you may already have ideas for activities you would like to lead. You can tentatively let us know in the registration form, we will ask for more detailed proposals in March.


All adult humans attending need a ticket. You get a ticket by registering and making a payment. Children and pets don’t need a ticket but please let us know if you are bringing any so we can make sure we have special tiny beds and eating chairs for them.

Spouses and families of our alumni are also invited to join us.

The cost for one person is 200 EUR. If paying this much would prevent you from going, you can pay a lower amount, appropriate for your financial situation. If you want to pay more it will help us offset those that cannot pay the full price.

The ticket includes:

  • Accommodation for three nights in rooms of at most 3 people each with en-suite bathroom. Cabins have their bathroom downstairs but there are at most 5 people staying in each cabin
  • All meals, snacks and drinks from Friday afternoon to Monday morning
  • All activities such as pool, football, volleyball, basketball, high ropes course

If your plans change, we will refund your ticket up to March 15, 2020. After this date we will likely incur costs with cancelations so we will consider later refunds on case by case basis.


There will be 2 buses which will leave the Dharmasala tearoom at 3pm and 4pm respectively on Friday and will take you to the venue (ETA 4 and 5 pm respectively). Dharmasala is a tearoom in an adjacent space to Epistea community/coworking space. You may find that people use the names Dharmasala and Epistea interchangeably. If you arrive early you can leave your luggage and hang out with the other participants there.

Plan your travel with regards to these departures. If you cannot make the last bus at 4pm, let us know and we can help you arrange your own transportation and/or match you with people in the same situation.

The bus will leave the venue at 9am on Monday and take you back to Epistea Lab. We should be back there at 10:00am.

If you need to be flexible and independent, it may be worth renting a car at the airport. In my experience, it will cost about 140 euros for three days, including gas there and back which is a pretty good price for groups of 4-5 people. 

If you have a place in your car, please offer it here.

If you plan to arrive several days before or stay longer after the event, let us know – we can arrange a couchsurfing with a local host from the EA/Rationality community. There will also be other events of interest happening in the proximity of the rEUnion. We will share the details as soon as we have them.


We appreciate you making your payment in a timely manner as we need to pay the majority of our expenses before the event.

If you have a bank account in the EU, you should be able to make the wire transfer easily and with little to no fees. Alternatively, you can use Transferwise – use the account info below, these are all checking accounts. Our official name and address are: Spolek pro efektivní altruismus, Za Zelenou Liškou 1586/2a, 14000, Praha.

Make sure to add a note with your full name and a sequence 1234 which will make it easier to track payments related to the rEUnion. If you are paying for more than one person, include their names as well. Once we receive the payment we will confirm your spot at the reunion.

EUR Account number: 2901240967 IBAN: CZ1220100000002901240967 BIC/SWIFT: FIOBCZPPXXX

USD Account number: 2601240965 IBAN: CZ3120100000002601240965 BIC/SWIFT: FIOBCZPPXXX (200 EUR is 225 USD)

CZK Account number: 2101082446/2010 (200 EUR is 5090 CZK)

Alternatively, you can use Revolut – send the money in GBP, EUR, USD or CZK to [email protected]

Code of conduct

We want the rEUnion to be a safe and enjoyable environment for all the participants and we hope that you can help us make that happen! First and foremost we want to encourage everyone to prioritize their own experience, protect your boundaries and your own wellbeing. 

When engaging with other participants we ask that you:

  • Respect the boundaries of other attendees.
  • Respect confidentiality requests by participants.
  • Look out for one another.

We also ask that you do NOT:

  • Harass or make offensive verbal comments, express hate speech or sexually harass anyone, including unwelcome sexual attention and inappropriate physical contact.

When in doubt, always ask. Consent is cool!

If you find yourself in an uncomfortable or threatening situation, ask any of the organizers for help.