Hello there Joanna,
Welcome to planDisney! How exciting that you've got a lovely 4-day long visit coming up so quickly. It will be here before you know it, woo hoo! Let's look at your ticket options, and see how to add some water park fun to your vacation.
First, let's verify which Disney Water Parks will be open during your February visit. I know sometimes during the winter months they close one water park at a time, in order to do refurbishments. You can always
check the park times calendar for the latest information, but at this time it appears
Blizzard Beach will be open during your trip dates, and Typhoon Lagoon will be closed. Blizzard Beach it is!
I chatted with a Cast Member, and unfortunately was told that no - they cannot modify a Disney theme park ticket into a Disney water park ticket. However, if you have an opportunity once you are at Disney World... it never hurts to double check with Guest Services and see what they can do.
One last thing to mention. Did you know that for all 2025 Disney World Resort stays guests will receive
FREE admission to a water park on their day of arrival? I would love it if this perk worked out with your plans!
I'm sorry this wasn't the answer you were hoping for, Joanna. I know you'll have a magical time at the four Disney theme parks, and if planDisney can help in any way with specialized recommendations or tips please reach back out to us.
Just keep swimming!
Tami