Retreats & programsArkana InternationalAyahuasca retreatsIquitos, Loreto, PeruShipibo-led ayahuasca retreats at two Peruvian centers (Amazon rainforest and Sacred Valley), with medical screening and oversight.Iquitos, Loreto · Address unknownwww.arkanainternational.comSource: Arkana International, official siteView full listing Get directions