Do I need to book a ticket for my 4-year-old child? JeanetteAuthor A Do I need to book a ticket for my 4-year-old child? Yes, you need to book a child ticket. Infants aged 0-3 years are free but need to be registered when booking. Related articles Why Lofoten is one of the best places for kayaking 7 Lofoten villages at a glance Guided glacier hiking at Folgefonna: one for the bucket list