For example if you've any intention of making your own waves down at the beach, please remember to take a big towel or blanket with you. Not so much to cover yourselves up as to put underneath. In greener and more forested locales like the local park, pine needles and grass seeds can make life difficult, but once again a blanket beneath you can alleviate the problem. Of more concern here, in fact worth considering in all outdoor adventures, are the other inhabitants. The multilegged variety.
Playful dogs can wreak havoc at all sorts of inconvenient moments.
Less amusing are the smaller invaders - the insects. Ants are never happy to stay under your blanket, unless you're under there too, and bees and wasps threaten a nasty sting, but the most annoying of all are the mosquitos. By the way, condoms are actually a pretty good idea in these situations. Nearly everyone's heard of the Mile High Club. For those who haven't, it's a colloquial term for those who've had sex in an aeroplane - while it's in the air, of course.