The Gems of the Rose

Steps

 * 1) Collect the gems at the bottom of the cold, shark infested sea.
 * 2) *Gather 5 Gems of the Rose from the bottom of the bay. These look like dark discs and don't show up on the target-nearest.  Infravision makes them stand out from the background a little easier.
 * 3) Bury the gems at the gravestone of Dun McDowell. (116, -17, 150)