On October 18th the Princess2-trial team visited the capital of Spain. We were received by a highly committed team of SAMUR-staff and doctors from La Paz and San Carlos hospital. We went over the rationale of the trial and got to join in on a cardiac arrest- simulation on the streets of Madrid. Neither of us could have expected a more exciting and interesting way of seeing the trial simulated like this! We are very impressed by SAMUR and their effectiveness and competence. We want to thank everyone involved in this day and say that we are very much looking forward to Madrid starting inclusion soon!