Disney was our first vacation after DDs diagnosis with type 1 as well. Since then we have visited multiple times and taken many other trips. Like everything else with type 1, it just takes more planning and preparation!
A few tips:
-pick a good park bag. I like a crossbody with lots of compartments, but a backpack works too. We used to be waist pack only park-goers but you definitely need a little more bag space.
-take extra supplies into the park each day (but not too many!) We take insulin and pump change supplies for one change, along with a good supply of glucose tabs and snacks. You can always buy more candy or juice if you run out of sugar, so don't haul around too much. We do bring lots of extra insulin and pump supplies to keep in the hotel but don't carry too much around with us daily. Also pack your other extras to have in the room-glucagon, keto stix, extra adhesive and remover, etc. We use a red duffell bag (old Land's end diaper bag) as our travel medical bag. It opens up wide so we can use it as a staging area for all her stuff.
-Disney restaurants don't provide carb counts, so you just have to guess. On our first trip 5 months after diagnosis, that was daunting, so we brought easy lunches into the parks with us. Now that we have been doing this for a while, we eat mostly counter service. There are lots of great choices available that are lower carb and healthy.
-The excitement and exertion of a full day in the parks can lead to lows, so DD usually uses temporary basals on busy days. Of course, the change of diet , etc, can lead to highs as well, so you just never know what might happen (unfortunately isn't that what life with type 1 is usally like
)
I'm happy to answer specific questions you might have--DD was diagnosed at 12 and is 17 now. She is super active, loves to travel and overall doesn't let type 1 slow her down. It is definitely a challenge, though, and I love to encourage and support other parents who are going through the same thing!