Swimming lessons

It's that time of year again. The girls are both in level 2 this summer. In order to pass level 2, you must swim the width of the pool. We may be here a while. They have completed 4 days so far and I'll give an update at the end of next week, but unless a miracle occurs, we are stuck in level 2 for all of the foreseeable future.
Kaylin actually made some progress today, but Annlee absolutely refuses to put her head in the water. She lets the water barely touch her lips and then pops her head right back up. The instructor laughs at her, but I told him today that he should just push her head under so she can get used to it. She does it at home, so it's not like she's afraid or anything. For whatever reason, she just gets intimidated at swimming lessons.