Park ranger warns of Valentine's balloons impact on Padre Island Valentine balloons end up on local beaches and last updated 2021-02-08 19:27:45-05 PADRE ISLAND, Texas â Valentineâs Day is around the corner. If you are planning on giving your significant other a balloon to express your feelings about them, think twice about how that balloon will be disposed of. âThat fleeting gesture can have a very lasting impact, because these balloons can be made out of materials like polypropylene, latex, mylar, and theyâre designed to withstand fatigue; which means once they end up in the environment, they can last a long time,â said Dustin Baker, the Lead Ranger for the Interpretation and Education Division at Padre Island National Seashore.