Context: After we 'd cruised around for an hour or so , I got hot . I realized I was surrounded by water ( duh ) but would have to let go of one of my random oddities of never touching foot in the lake . We were far enough out that there was none of the usual slime skin on the water , or random trash floating by . I quickly jumped off the back of the jet ski without thinking .

Question: What 's a possible reason the writer got hot ?
Options:
0. None of the above choices .
1. It was a hot day .
2. They were cruising around .
3. They were surrounded by water .
Answer: 1