You have a fridge and microwave so bring your own food or go to the grocery store. No way to do that? Then just pack some sardines or other similar portable non-perishable food in your luggage. Can't do that? Then eat the hotel swill and go back to real food when you get home.
Years ago I worked at Sea World in San Diego. I have to tell you that theme park food is the absolute worst quality food and worst tasting food there is. If you can avoid eating it, do.
Female, 5'3", 50, Starting weight: 163lbs. Current weight: 135 (more or less).
I can squat 192.5lbs, press 75lbs and deadlift 210lbs