The Icelandic National Day celebrations in Reykjavík take place annually in the city centre on June 17th from 10 o'clock in morning until 6 pm. 
The programme includes family oriented entertainment with street theatre and a variety of wonderful activites, followed by a concert at  Austurvöllur and an accordion ball at City Hall.
The programme starts with the chiming of all church bells in Reykjavík, followed by a mass in Domkirkjan Cathedral. At 11:10 the Icelandic government's National Day ceremony starts at Austurvöllur Square, followed by a parade from Austurvöllur to Suðurgata Cemetery, where the Chairman of the City Council lays a wreath of flowers on the grave of Jón Sigurðsson.
Family oriented entertainment starts at 13:00 with parades from both Hlemmur and Hagatorg Square. In Hljómskálagarður Park (by Tjörnin lake) complimetary activities include, outdoor play sets, games and a show from Brúðubíllinn (puppet show).
On the main stage in Hljómskálagarður there's concert with Icelandic musicians from 2-6 pm.
The Icelandic Circus makes appearances in Hljómskálagarður with engaging characters, workshops and circus shows.