Yes, there is a minimum age requirement of 2 years to go into the water. Toddlers are certainly allowed on the premises with their parents/supervisors. Children from age 2-13 are welcome to go into the water and enjoy the Blue Lagoon with their family or their guardians. Due to the origin of the Blue Lagoon seawater, it's colour sudden changes in temperature and rough surface, children from age 2-8 must wear inflatable armbands in the lagoon. These are provided free of charge. Please note that each guardian is only allowed to supervise two children under the age of 10. For safety, and out of respect for other guests, please keep an eye on your children at all times. There is no children day-care or other special children facilities at the Blue Lagoon.