Tempest island dungeon's quest?

Inversus

Apparently the tempest island quest appears once you kill the things on the beach - tried 3 times and it doesn't.
Bug, or am I doing it wrong?

HairOnFire

Did you do the last hit on the things?

Chiraku

same here cant seem to find the quest npc ether

Edit : Found the npc, if you spawn inside the dungeon get back a bit on the beach and find the 3 npcs near a rock at the exit of the dungeon the female with the shield has the quest.