The Guadalupe River is an 691.7 km | 429.8 mi long river in Texas, USA. It originates in the hills of the Texas Hill Country in Kerr County and flows southeast to its mouth at San Antonio Bay in the Gulf of Mexico. The river passes through diverse landscapes, including limestone formations, forests, and agricultural areas. It is known for recreational activities such as kayaking, fishing, and tubing, particularly in the section between New Braunfels and Canyon Lake. The Guadalupe River plays a significant role in water supply, agriculture, and tourism in the region.