Port Isabel is a great alternative for a rainy day as well; it is easily accessible by car – via the Queen Isabella Causeway – or by South Padre's public shuttle bus, the Island Metro.

SOUTH PADRE ISLAND, Texas (ValleyCentral) — The City of South Padre is hosting its Double Causeway Cross Run event. The event will occur at 7 a.m. on Saturday, Feb. 22, with temporary lane ...