Baron Aquanis
Bring the Strange Water Globe dropped by Baron Aquanis to Je'neu Sancrea.
Bring the Strange Water Globe dropped by Baron Aquanis to Je'neu Sancrea.

Loot Strange Water Globe in Blackfathom Deeps and right-click it to start the quest.
Horde: Je'neu Sancrea in Ashenvale (11.6, 34.3).
Outlaw Sabre, Witch's Finger, Dreamer's Chestguard, 7,250 XP.
Baron Aquanis is a level 30 quest; you can pick it up from level 21. It takes you into Blackfathom Deeps.
All Blackfathom Deeps quests on one map ·Blackfathom Deeps dungeon guide
Sources: Quest data from ForeverDB.net · ForeverDB: Blackfathom Deeps · ForeverDB: Every dungeon quest for the level 20 to 30 dungeons · ForeverDB: The Orb of Soran'ruk · ForeverDB: Seeking the Kor Gem · ForeverDB: Baron Aquanis · Warcraft Wiki: Blackfathom Deeps (Classic)