This hotspring is not difficult to find. From the village of Hveragerdi, you will only need a pair of hiking boots and your day pack to be ready to take on this adventure. Despite the hike being easy, the path can be damped in spring and autumn after rain and simple sneakers will not stand the water. Also note that winter hikes up there can be quite challenging.
The hike to the bathing area takes 45 minutes. The path is well marked and no advanced hiking experience is needed. But time does not really matter when you walk amongst the wonders of Iceland. Canyons, boiling mud pits, smoke chimneys and you will even experience the adventure of crossing a river. Although, this one is warm!
Once arrived at the bathing spot, there is nothing to do but to put on your swimsuit (or not) and enter the river. One thing you will notice, there is "nothing" up there, no shop, no changing rooms, no tourist information, just the pleasure of bathing in the unspoilt Icelandic nature.