"Hesperia, the central landmass, is often characterized by vast arid deserts and expansive drylands, embodying the untamed spirit of the wild setting. Amidst its rugged terrain, lush forests, snowy mountain ranges and humid swamplands provide stark contrasts and refuge. Surrounding Hesperia are diverse islands: to the west, the secluded Themysciran while southwest lies the remains of Poseidon's Lost Kingdom. In the north, the frigid Hyborean Glaciers create an icy frontier, while Lerna Canyon in the south marks the edge of the known world."
Though often mistaken to be the name of the largest island in the Epineio archipelago, Themyscira is the name of the city. The city is built over a number of the islands though most of the larger structures can be found on the main island of Adelfi including the palace of the Amazons.
Lake Llyncau lies in the cradle of the mountain called Cadair Amser, or at least what is now called a mountain. Not long ago, it bore another name. It is hard to look at Cadair Amser and not see that it resembles the rim of a massive crater.