We had lesson 5 for our spring swim lessons. I signed the girls up in hopes that they wouldn't drown at camps or the pool the summer.
Babysitters took them the first week. Lesson 1, Lucy took a while but finally got in. Lesson 2, she sat at the side for a while, but finally went in. Lesson 3 was the first time Mommy went and she excitedly went in and did great. Lesson 4, wouldn't go in. Last 5 minutes of the class she wanted to go in, but I denied her. Drama, crying, wailing that culminated in a tantrum by the time we reached home.
Today, Lesson 5 on the way she indicated she could possibly be getting it. This was a shot from our lesson.

I have tried the threat - "you will have to get a babysitter this summer when Mommy and Harper go to the pool", and the bribe "I'll buy you a slushie if you get in". Today I wanted to throw her in the pool, but there were two police officers there checking out scuba gear, so I decided against it.
If I can get the sitter on Wed, I think it would be effective for her to show up and me leave with Harper. But it. will. be. traumatic.