Mount Lanaryu is as frigid as the Hebra Mountains region, with a dramatic decrease in temperature, requiring either two cold-withstanding clothing or mid-level cold resistant food. Animals otherwise indigenous to the Hebra region in the northwest have the possibility of spawning. Ice-elemental white chuchus and Keese are prevalent in the snowfield and summit, as well as Lizalfos enemies hiding on the mountain path, ready to ambush passerby. The mountain is also the home of the Spring of Wisdom, as well as its guardian Naydra.
Mount Lanaryu is unique in appearance, as the mountain has large crystal spires dotting the perimeter of the mountain, giving it a more crowned look. Like the small mountains to the west of Death Mountain in Eldin, the spires are angled towards the top of the frigid peak. The only major route to the mountain is from the west, passing the lakeside Lanayru Promenade, a small temperate clearing (home to both a Lynel and a Hinox) and the pine forest to the west the Naydra Snowfield. This route is availiable on two sides: from Kakariko Village, passing the Great Fairy in the forest, or through the wide Rabia Plain on the south side of Rutala River. Either way, the player will still have to deal with the Lynel and other monsters on the path.
Mount Lanayru shares its name with its province and the other regions. As stated by Zelda in a recovered memory, they are named after the Goddess of Wisdom, Nayru.