Kraken

The Kraken is a stronger and larger version of the Cave kraken. They require 87 Slayer to kill. Located at the Stronghold Slayer Cave, they can only be attacked if you have them as a Slayer assignment. Along with these monsters and its non-boss variant, they are the only monsters to drop the Kraken tentacle.

In order for the Kraken to surface, players must disturb five whirlpools: Four small ones that contain an Enormous Tentacle, and the large one in the centre will only cause the Kraken to surface if the player has disturbed the four small whirlpools.

As with all monsters in the Stronghold Slayer Cave, they can only be attacked if you have them as a Slayer assignment.

Drops
Harpoon

Sanfew Serum (2)

14,645x coins

400x water runes

60x blood runes

2x Sanfew serum (4)

1x Crystal key

250x Chaos runes

50x Soul runes

24x Watermelon seed

10x Battlestaff

2x Torstol seed

50x Raw shark

1x trident of the seas (full)

60x Oak plank

150x Death rune

5x Shark

13,792x Coins

8x Diamond

100x Mist rune