There's just something about the beach. The crashing of the waves. The muffled sounds of people playing and chatting further down the beach from you. So yeah...it's nap-inducing.
One thing you have to remember about the beach though...it has waves.
Check out this little guy waking up the hard way!
Oh...and who is worse here? The person filming who CLEARLY knew the kid was about to get swallowed by the ocean, or the parents who were simply just not paying attention?