How to get to Geysir?
Here is a map from Keflavik Airport: en.ja.is/kort/#x=407010&y=391876&z=4&type=aerial&from=keflav%C3%ADkurflugvelli,%20235%20reykjanesb%C3%A6&to=haukadalur%20II
If you are coming from some other place than the airport, change the place at "from" (place, adress)
Geysir is on route 35 or route 37 from Reykjavik / Þingvellir
You can also drive through Thingvellir the National Park, Lyngdalsheidi, it is about an hour drive to Geysir from Mosfellsbæ.
GPS: 64°18,603´N, 20°18,024´W