Padre Island

The island was used and occupied seasonally by the Karankawa people at the time of European encounter. During Spanish rule, Father José Nicolás Ballí, also known as Padre Ballí, owned the island in the 19th century, when it was known as the Isla de Santiago land grant. After Ballí died in 1829, the government granted title to the island to him posthumously, issued jointly in his name and that of his nephew Juan José Ballí. He had bequeathed half the island to his nephew, who had worked with him on his ranch. During 1953-1956, an annual 110-mile, three-day walking race was held going the length of the island, south to north, called Padre Island Walkathon. It was the first modern-era ultramarathon in America and involved up to 148 walkers, with a large mobile support staff. At the time, it claimed to be “the toughest, roughest athletic contest in the world,” with a finish rate of only 11%. == Geology ==

Geologically speaking, Padre Island is a young island, having formed in just the last several thousand years. It is one of 300 barrier islands stretching from Maine to Mexico. These natural barrier islands act to protect the mainland from the direct onslaught of storms. Padre Island began forming as a submerged sand bar some 4500 years ago, as shown by radiocarbon dating of shells. Geologic speculation indicates the emerged island may be 1000 to 1500 years younger. Barrier island origins have been debated for many years by geologists, but it is agreed they are formed and modified by such factors as sediment type and supply, sea-level directional changes, current and wave strength and direction, and tide magnitude. It is theorized that Padre Island formed from offshore shoals, with later growth aided by spit accretion. (A spit is a long, narrow tongue of sand extending from a mainland shoreline and formed by the shoreline drifting of sediments.) After a history of shifting, abandonment and reestablishment by storm breaches, many tidal inlets were slowly closed. Short islands were joined to form today's longer islands. Padre Island graphically illustrates the life and sequences of a barrier shoreline: accretionary or building phase, equilibrium or stability phase, and erosion or destructional state. The northern half of Padre Island's shoreline is in equilibrium; the southern half (and much of the remaining Texas coastline) is in an erosional stage. Wind, wave and current action continue to rework and shape the island. South Padre Island has been in a destructive phase for a long time, probably having retreated landward (along with the lagoon and mainland shoreline). All of Padre Island will probably retreat landward through long-term erosion due to three causes: interruption and decrease in sediment supply, relative sea level rise, and tropical storm activity. Today, hurricane washovers and wind-carried sand deposited in Laguna Madre build Padre Island's landward side at the expense of Laguna Madre. ==Wildlife==

Birds Flocks of migratory birds arrive at the island during either early spring or fall and winter, with thousands of birds spending the winter there or migrating through the area. During the summer the most common birds are shore and marshbirds as well as some raptors and songbirds. ==See also==