The Guadalupe River (/ ˌ ɡ w ɑː d ə ˈ l u p /) [4] (Spanish pronunciation: [gwaðaˈlupe]) runs from Kerr County, Texas, to San Antonio Bay on the Gulf of Mexico, with an average temperature of 17.75 degrees Celsius (63.95 degrees Fahrenheit). [5] It is a popular destination for rafting, fly fishing, and canoeing.