Hrunalaug, also called Hruni Hot Springs, is a small spring with a mythical feeling.
Small and picturesque improvements make it accessible to soakers. A small concrete room with a turf roof acts as a changing room, with a small warm pool with enough space for only two "sits" connected to the back of the room. Outside, a larger rectangular pool is about 40˚C and has enough space for about eight people.
With those space limitations, it should be noted that this spring tends to fill up quickly and remains crowded throughout the day. Visitors should try to visit early in the mornings or at dusk to avoid the crowds.
Visitors are asked to pay 1.000 ISK to help the landowner with maintenance. Set on private land, there is no camping permitted at the spring or anywhere in the vicinity. There are also no bathrooms or trash cans, so visitors should plan ahead for this.
With the size being such that even small crowds can make the springs feel crowded, springs seekers should also consider the nearby Secret Lagoon, Iceland's oldest public geothermal swimming pool, which has been maintained in a natural state and is sizeable enough to handle crowds and still feel spacious.