"i'd like to go and have a look at those rocks down there."
Jerry and his mom go to the beach, "Going to the shore on the first morning of the vacation."(375)
Jerry's mom lets him swim over to some tall rocks.
"I can hold my breath for 160 seconds."
When Jerry gets to the rocks he sees kids diving off the rocks and under another rock. These kids then stay underwater for 160 seconds. Jerry was confused and curious on how they did it.
Jerry swims underwater and finds the hole about 7 feet underwater, he looks into it but cannot see anything because it is very dark."He could see the hole. It was an irregular, dark gap; but he could not see deep into it."(379)
For the rest of the time of vacation Jerry would practice holding his breath until he got to 160 seconds. He planned on diving into the hole on the last day.
The last day came around And Jerry was prepared. But when he got into the tunnel it was very dark and he could not see he bumped his head and almost got lost he lost track of time and almost drowned. He made it out but with a bloody eye.