Every Friday in June, July and August the Reykjavik Botanic Garden offers a free guided tour in Icelandic and English. The tour takes about 30 minutes and the themes are the history of the garden and the 8 collections on display, especially the Icelandic Flora collection.
The themes of each tour vary depending on the plant display that week. The Icelandic tour starts at 12:00 and the English tour at 12:40.