After serving as an intern pastor in two Southern California Vineyards – West Los Angeles and Santa Barbara - he moved to British Columbia and joined the Langley Vineyard church plant at its inception in 1985. He served on the staff there for four years as an assistant pastor, majoring in worship music ministry.
Park began recording with Vineyard Music in the late 1980s. He has participated on many Vineyard recordings. In 1990, Park released his first solo project, I saw Heaven. In 2006, Park released another solo studio project, Unshakable, through ION Records (ionworship.org).
Park has been to many countries to minister including Redeemed Christian Church of God, Corner Stone Parish, Okota, Lagos, Nigeria.