Where You Finish Counts

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!

SPI Marathon


SPI Half


SPI 10k


Why South Padre Island?

Sand Castle Capital of the World, Best Beaches in Texas, Top Birding Destination, Fireworks Capital of Texas, Schlitterbahn Indoor Water Park, Dolphin Cruises, World Class Fishing, Snorkeling and Scuba Diving, Kite Boarding and Wind Surfing Capital of Texas, Pirate Cruises, and so much MORE!

Contact us

South Padre Island Marathon
South Padre Island, TX 78597


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