I've been a Type One for 24 years, and I can tell you Disney walking can cause havoc on your sugars. Like people above said, speak with your doctor before anything. I know (I am on Humalog and Humulin N injections (yes I am old school lol)) and I take out about 1/5 of my long units every day to help with having less lows. I find having juice, or pop in line is the best thing.. and then also some kind of protein snack (peanut butte packets work for me). I am not a fan of the glucose tablets as they make me super thirsty after, and if I am going to have to drink a whole bottle of water to have those, I may as well just have juice. Sounds like you definitely need some quick acting snacks! Peanut butter crackers are good for a low long term (they'll help so you don't have a rebound low) but they aren't going to do much for you for bringing the low up quickly. Also, if you find yourself in a line and are low and need something... find a cast member, tell them the situation and they should let you leave and will give you a pass to get back in when you have treated. They have done this for me before... and one time a cast member literally went and got me a bottle of juice.