There is a lot of hard work that goes into this job. Being in charge 10 - 13 children at once is mentally taxing even with the help of your other staff members. In addition there is so much physical labor and you need to make sure you have plenty of sunscreen on and are drinking lots of water. Don't expect to be done at a certain time. you could get stuck on a bus for 2 hours because of traffic or spend an extra hour after kids have left making sure gear is put away. (to be fair those last 2 are very rare)