Here's a pic from an old Where's Waldo, I remembered it as a kid and tracked it down. It's actually one of the things you're supposed to find that isn't Waldo, they call it 'a ticklish torture'.
Awesome story. I love beach buried feet tickling, it's a favorite of mine. Here's my favorite beach buried tickle story:
http://www.ticklingforum.com/showthread.php?179907-My-favorite-true-story
So I happen to be somewhat bilingual and decided to see what I might find by searching the french page of tickling on wikipedia. As you might expect the page is very different with different information. One thing that caught my eye was a claims about gender and ticklish feet. It claims a...