The Enormous Tentacle are the tentacles of the Kraken that resides in the Kraken Cove. Four must surface by disturbing the four whirlpools in the boss area in order for the Kraken to surface, and then disturbing the larger whirlpool.
The Enormous Tentacles's attack use their Ranged level, and targets the player's magic defence; thus, Protect from Magic will not work. Although their max hit is 2, their attacks are extremely accurate and add up over time.
Trivia
- It's examine text is a reference to Pirates of the Caribbean Dead Man's Chest and it's sequel, At World's End.