Explorer's Grand Slam
The explorer's grand slam is like a really big adventure race that some people try to complete. It's called the "grand slam" because it has four different parts, and if you finish them all, it's like hitting a grand slam in baseball!
The four parts are: climb the highest mountain on each continent (that means going to the top of the tallest mountain on each of the seven big parts of the world), and ski to the North and South Poles (that means going to the very top and bottom of the earth and skiing there).
It's kind of like a
The four parts are: climb the highest mountain on each continent (that means going to the top of the tallest mountain on each of the seven big parts of the world), and ski to the North and South Poles (that means going to the very top and bottom of the earth and skiing there).
It's kind of like a