Duck!

If you're ready for a vicarious thrill, check out (via Metafilter) some landings of airplanes at Princess Juliana Airport on the island of Saint Martin. First, some background, from Wikipedia:

The airport is famous for its short landing strip — only 7,152 ft which is barely enough for heavy jets. Because of this, the planes approach the island flying extremely low, right over Maho Beach. Countless photos of large jets flying at 10-20 m/30-60 ft over relaxing tourists at the beach have been dismissed as photoshopped many times, but are nevertheless real. For this reason as well it has become a favourite for planespotters.

Now, check out one of the videos. Yikes: