Context: The flights out there and back were n't terribly fun , as you can imagine . ( 18-month - old + 5-hour - plane - ride = very tired parents ; change it to a solid 18 hours total travel to get back , and we were just grateful we all made it to our apartment in one piece . ) However , once we arrived it was absolutely wonderful . The timeshare was on Kauai , the oldest island that tourists are allowed on .

Question: What 's one major reason why they were tired ?
Options:
0. They needed to make it to their apartments in one piece .
1. They were traveling along with their baby .
2. Their timeshare was on Kauai .
3. The flights were n't fun .
Answer: 1