Why was San Juan Capistrano built there?

San Juan Capistrano was established in its location primarily for its proximity to water and fertile land, which were essential for agriculture and the sustenance of the mission community. The area, situated near the San Juan Creek, provided an ideal environment for farming and livestock, supporting the mission's self-sufficiency. Additionally, its location along the coastal route helped facilitate trade and communication with other missions and settlements in California. The mission was founded in 1776 as part of Spain's efforts to spread Christianity and expand its influence in the region.