Water orb

The Water orb is made by casting Charge Water Orb on the water obelisk (requires level 56 magic). The obelisk is on Water Obelisk Island and can be reached via Taverley Dungeon, though a one-way grappling shortcut to Catherby exists for leaving the island. When the player has an unpowered orb in his inventory while casting the spell there, the unpowered orb becomes a water orb. It can be attached to a plain battlestaff to make a water battlestaff, giving 100 experience if the player has a Crafting level of 54 or higher.

Water orbs are also the tertiary ingredient in infusing Hydra pouches.

It can be a rare drop from Sea snake young, and is dropped quite commonly in noted form by Waterfiends.

It is also possible to be looted from Spirit Implings, two at a time.