Saturday, November 12, 20166:30 am CDT
Manautou and HWY 100
Port Isabel, Texas 78578

South Padre Island, the Sandcastle Capital of the World, is now home to the ultimate Runcation weekend! The SPI Marathon and Half-Marathon begin at the historic Port Isabel lighthouse, crosses the crystal waters of the Laguna Madre, via the 2.5-mile Queen Isabella Causeway, to the sun-soaked shores of South Padre Island. White sand beaches, sandcastles, palm trees and enthusiastic spectators line the route to your finish line at the largest beach bar in Texas!