The Attica Zoological Park extends to a total area of 20 hectares, hosting more than 2000 animals from 350 different species. It opened in May 2000, initially as a Bird Park, hosting the 3rd largest bird collection in the world (1100 birds from 300 different species). There are 3 very impressive walk-in aviaries – miniatures of the 3 continents – in which you and your children and/or strollers can walk and see the birds from up close. There is also a farm, a large playground, and a picnic area. The Athens Zoo features several endemic Greek animals such as the rare and endangered Skyrian horse. The dolphinarium offers educational shows on the protection of the sea and its wildlife. Entrance fee is €16.00 for adults and for children 3-12 years old is €12.00.