I hate to tell you this, but . . . I took my DD at age 2 3/4. She NEVER wanted to go to Flounders. It was OK with us because she hung out with us at the pool and she took naps. It was a GREAT time -- there was me, DH, My sister, DD and DS. We alternated who was with the DD at any time. Each of us got our own 'quiet' time.
Now, on the upside, she remembered that cruise like it happened yesterday. Talked forever about meeting with Cinderella. The pictures are beautiful. We went again this October and she had an even BETTER time. She was 4 1/2 this time and that is the PERFECT age for little girls.
I would recommend you try and wait until she is fully potty trained and over age 3. She could go in the clubs if she wanted.
If you go now with her, you all will LOVE it. If you wait, you will LOVE it, too!