Ahoy Karissa!
My family has been sailing with Disney Cruise Line since my daughters were very little. Our youngest was two on our very first cruise! Now, with a teenager and one going off to college, I can truly say we've had experience with every Youth Club on the ships!
Disney Cruise Line's Youth Clubs are nothing short of amazing. With attentive, well-trained Youth Counselors, loads of fun activities, visits from Disney Characters (and more!), the clubs are the place to be for cruisers ages 3-17. Your daughter would be assigned to the
Oceaneer Club and
Oceaneer Lab, for ages 3-12. Time in the Youth Club is included in the cost of your cruise, and the clubs are open for typically the same hours each day. Your daughter can visit as often as she likes, and stay as long as she likes!
On your first afternoon onboard, the clubs should open around noon, and be open until midnight, with a short break for the Guest Assembly Drill. On most other days, the Youth Club hours are typically 9am-Midnight. On port days, the hours may vary just a bit, so make sure to refer to your Personal Navigator (a detailed schedule you'll receive in your stateroom each day) for the daily hours for your particular sailing.
I hope this helps with your planning. Thanks for stopping by the Disney Parks Moms Panel with your question! - Diane W.