Junior Ranger Day at San Antonio Missions National Historical Park Saturday, September 10, 2022. 10:00am - 2:00pm at Mission Espada- 10040 Espada Rd, San Antonio, TX 78214. Become a San Antonio Missions World Heritage Junior Ranger! Explore fun activities such as spinning, weaving, and storytelling and earn the exclusive Wally the World Heritage Wolf patch during this event. This event is part of the World Heritage Festival. This event is free and open to the public!