There is the Blue Lagoon, and the Iceberg Lagoon, but the Bronze Lagoon is best.
Breiðabólsstaðarlón
(Hint: It’s in between the other two.)_
If you head East from Þingvellir and reach the height of land, and the turn off to Laugarvatn, why not stop and wait for the sun? This is elf country. They just might show. What you are looking for are rainbows almost invisible as the sun disperses the mist like a breath.

And if they don’t show, waiting is also arrival. It all depends upon which country you arrive in. Care to try? You’ve got nothing to lose!
Shield volcano, with path.
Skogarkot
Both are heads. Literally. The word remains in English as a cob, known in cobblestones (each has a round head) or a cape, which is also a headland, and that’s the Icelandic word: hæð, or head, or height. Remember that for the culture that settled this magical place, these really were heads. And so they remain.
Troll, Just Hatched, at Dimmu Borgir
þingvellavatn
Then it reveals another world.
Then it turns blue. The other world is still there, but white now.
Then there are colours, and mountains, as the two worlds join.
When you count the houses built at þingvellir each time Iceland enacts a new constitution, that’s three worlds. Well, four if you count the ice.
When you turn off onto Road 5001 at the head of the Havalfjörður to visit the high waterfall Glymur, make note of the gravel parking area to your left. When you come back soggy and disappointed that Glymur is unattainable because of bad weather and high water and muck, why not stop and hike a hundred metres up the stream to Paradisarfoss? She’s a pretty little one, with a fine little forest of wild birches. You need never be disappointed in Iceland.
By Icelandic standards, that’s a very good trail there.
Well worth the trip! And no, this was not sunset. And, yes, the sky was that pink. It was just November 5, that’s all, when a stroll through the rain is like a walk through laughter.
It is best to leave the city in the dark and strike east. If you time it right, you’ll be right on time. Be right on time. You can sleep later. Now is not the time for sleep.

Heiðarbærjarhólmi
There is a special hour on Þingvallavatn. Right after darkness, it is light. Then the light extinguishes and the world begins without illusion: blue.
The soul rises early. Everything that follows is just light.