Trek to Ala-Köl lake

High pasture lake with yurt stays.

Alpine lake named for Alexander.

Turquoise lakes among sharp peaks.

Poetic landscape of lakes and fells.

Glacial lake staircase high in the Rila mountains.

Pristine "blue pearl" lake near Siberia.

Granite valleys, Turtle Rock and ger camps an hour from Ulaanbaatar — horse-riding country.

Rhyolite mountains streaked orange, green and pink, with a natural hot river to soak in after the walk — the start of the Laugavegur trail.