Every has a certain level of 'geographical ignorance' that sometimes brings laughter.
For example, the Pacific Ocean is far more dangerous than the Atlantic or the Caribbean, at least most of the time as the waves and currents are much higher.
When growing up, we were taught a healthy respect for water, and how to properly deal with the conditions.
But other visitors weren't...
And this is when you get the person who is unwilling to go much deeper into the sea, while standing right at the point where the waves break...
Or the adults, feeling assured when they see children playing in the sea and large waves...not noticing that the procedure for avoiding a large wave is to go UNDER it, not to lean down and twist your body sideways to give the wave a bigger target to mow down...
Einstein said two things were infinite; the universe, and stupidity. He wasn't sure about the first, but he was certain about the second.