Check out these video guides to see the exact parkour paths and visual markers for these rare spawns:
Head to the Slayer Corps HQ. Locate the NPC Uzui and check the ledge directly behind him for the first potential spawn. Check out these video guides to see the
Here are six notable spawn spots identified by the community and official guides: Jump down into the cave (be careful of
Located near the area where Rengoku spawns. Jump down into the cave (be careful of the Axe Demon) and check the upper corners by jumping up. From the Slayer Corps entrance, climb the mountain
Go to the soup shop in Hayakawa village, turn left, and head toward the white peak area. Look for a large bush near a sign where a crystal often spawns.
From the Slayer Corps entrance, climb the mountain to reach the cave behind Zenitsu. Inside, take two right turns and wall jump onto a thin ledge above the ore deposits; a crystal can spawn at the very end.