Fairy ring - A quick way to access the lair is using the nearby fairy ring with the code biq. Then, run north-west towards the lair.
Shantay Pass - An alternative is entering the desert via Shantay Pass, which is located south of Al Kharid and requires a Shantay pass, and heading westward to the lair. To reach the Shantay Pass first use a Ring of Duelling to teleport to the Duel Arena then head south to Shantay Pass.