1. How long is your gymnast's training and what time of day? Coaches perspective here. Girls team level 3 and up work out for 3 hours. Optionals are sometimes 3 1/2 hours.
2. How long is the break? When during training do they get the break? No breaks, although girls are sent to get water every 1/2 hr (every 15 minutes if it's hot). They are encouraged to bring a water bottle and carry it to event so they can drink between turns. When girls first move into level 3, they are encouraged to bring a quick snack that they can eat at the 1 1/2 or 2 hr mark if they are hungry. They tend to phase this out on their own within a month. If gymnasts have health issues, they are allowed to snack as necessary. For example, we have a recently diagnosed diabetic. She tends to go low on floor and vault, so she goes and checks her blood sugar and eats a snack.
4. Do they have a microwave/kettle/toaster/anything else available to use? Do they have a fridge to store food in? Microwave and fridge are officially staff use only, but when kids are there all day, I've seen them use it. In the summer, some groups have the option of double workouts 9-12 or 10-1 and then 4-7. Some parents can't pick up and drop back off, so their pre-teens/teens will stay at the gym, read, eat lunch, and help with summer camp a bit. I know I've seen some use the fridge and we haven't stopped them.
6. Are there any restrictions on what they can or can't bring? No. We will suggest bringing something "healthy," but leave that to them and their parents to define. Exception being severe allergies. For example, one year we had a level 3 with a severe peanut allergy. We asked other level 3s not to bring peanut-snacks to meets, because, if they say, "high fived" her with peanut dust on their hands...bad news!