you think that's bad?
i live in southern california, and i spent most of my childhood, early- and mid-teen years on the beach. aside from cigs, the most common sight on the beach is that of condoms. i guess some people really are into the whole sex on the beach thing, huh? good for them, i guess, but damn, don't leave your used protection lying on the sand for people to step on!
one time, many moons ago, i was on the Junior Lifeguards squad for my city. we were on a 4-mile jog on the wet sand near the water, and i stepped on a condom because i wasn't looking where i was going. i had this instantaneous (and very violent) reaction that involved springing about four feet off the ground, flailing my arms and legs, and screaming "oh, ******g SICK!"
also, i'm pretty sure that latex is very far from being biodegradable.
moral of the story: if you're going to have sex on the beach, don't.