Sentence 1: Tim wanted to go on an adventure. 
 Sentence 3: It was his first time 
 Sentence 4:  He wasn't prepared for how hard it would be 
 Sentence 5:  Tim slipped and got severely hurt 
 Option 1: He decided to go skydiving for the first time and it was exhilarating. 
 Option 2: He went cave diving with friends.