The shortest route from Laugarvatn to Þingvellir is 19km, 27 km to the Information Centre. It is also possible to drive road no. 37 onto road no.35 and then road no.36 to Þingvellir, that is 58 km. In Þingvellir there is an Information Centre. There you can find all the information you need about Þingvellir, historic places, walking routes and more. www.thingvellir.is