Tres Dias is a 4-day, 3-night spiritual program and means “3 days” in Spanish. Tres Dias originates from the Roman Catholic Cursillo Movement led by the Bishop Juan Herva, Eduardo Bonnin, and others. It was later spread to the United Kingdom, stripped of Roman Catholic characters, and became a protestant Christian program.
In 1986, Grace Korean Church held the first Grace Tres Dias (GTD) in the United States targeting Korean Americans and in 1988, the first Europe Tres Dias (ETD) in Germany. In April 1992, Pastor Kwang Shin Kim and Tea Won Kim held the first Europe-Seoul Tres Dias (ESTD). Since then, hundreds of protestant Christian churches in South Korea have adopted the program and are offering it under many different names and in many different formats.
Tres Dias is effective in helping the participants experience God’s love deeply and giving them opportunities to commit their lives to Jesus. As of 2020, Grace Korean Church has held 194 sessions of GTD and produced approximately 19,000 pescadores (those who have completed the GTD program). Many missionaries are bearing much fruit of evangelism and mission through Tres Dias on GMI mission fields, as well.