The occupants of the farm at Grœnavatn may be described as “a happy family.” The two sons of Pètur of Reykjahlíð, Jón and Arngrimur, had married the two sisters of my previous guide, Thorlákur, and he, by way of returning the compliment, had married one of their sisters. They were all living under the same roof with Thorlákur’s father, and together managed their thriving homestead.
About midday we started for the sulphur mines of Fremri-Námur, on the east and west slopes of the Bláfjall and Hvannfell. Proceeding in a S.S.E. direction we crossed the lava which occupies the entire eastern side of the valley of Mývatn, and began to ascend the hills at the base of the Bláfjall. We here inspected two small but perfectly-formed craters, both of which had discharged lava streams into the valley beneath. A little further up the hill to the north of the Bláfjall we came upon the tracks of the Sulphur Exploring Expedition, under the conduct of Capt. Burton, who had passed that way a few days previously. From this point the hills commanded a striking view of Mývatn, Krafla, and the neighbouring mountains, with a glimpse to the south-west of Arnarfells Jökull in the far distance. This we found was a difficult route for the horses, and it did not improve as we reached the lava which had flowed from the Fremri-Námur at the time of its latest eruption. This lava stream had flowed into a valley between the Bláfjall and the Hvannfell, destroying all herbage except a little “island of green,” which it almost encircled; this small patch of verdure is called Heilag (holy valley). Here, choosing a spot where there was the most grass, we rested and lunched. The grass, however, was not plentiful, the greater part being what is called kinder-grass (sheep’s grass), or a mixture of straggling birch and salix intermixed with coarse grass and herbage. The sheep eat this with avidity, but horses must be very hungry before they will feed upon it. As we were about to depart a heavy snow storm burst upon us. My guide had no waterproof, but I had a large oilskin that Mr. Kent, one of the sulphur explorers, had given to Paul; we therefore took shelter under the lee of a crag in the ancient lava stream underlying the grass-land, and improvised a roof with the oilskin and our whips. We were imprisoned for more than an hour; so violent was the storm that it was impossible to see many yards around us. Eventually it cleared up; we had almost succeeded in keeping ourselves dry, and I think our drenched and shivering horses were only too glad to resume their journey.