The Park is open daily all year round, with longer opening hours during summer (usually 7am to 8pm). There’s an entrance fee which acts as a contribution to the Park’s upkeep and protection: for adults it’s 55 Kunas (£7.75/$10/€7.25) January to March and November and December; 110 Kunas (£12/€14.50/$19.50) during April to June and September and October; and 180 Kunas (£20/€24/$32) in July and August. Children aged 7 to 18 have cheaper tickets, whilst children under the age of seven go free. Groups of 15 or more people can get discounted tickets, as can university students. 4-hour guided tours in English, German French, Spanish, Italian or Croatian can also be pre-booked for a minimum of 15 people.