To reach Kwismas Island, go to Madrestam Harbour at [8,-6] and talk to Hector Kwismas. This NPC is only present during the period when Kwismas Island is available, roughly 1 month before and after Christmas.
The Key Mould is available at the Kwismas Shop after completing a quest.
Monsters
Hibernal Tofu
TOFU HIBERNΓ
Lvl 74 to 90
Minimini Inuit
MINIMINI NUIT
Lvl 100 to 120
Snowball
BOUBOULE DE NEIGE
Lvl 80 to 96
Hibernal Tofu
TOFU HIBERNΓ
Lvl 74 to 90
Snowman
BONHOMME DE NEIGE
Lvl 90 to 106
Ice Crackler
Craqueleur des Glaces
Lvl 110 to 150
Abominable Snow Yiti
ABOMINABLE YITI DES NEIGES
Lvl 120 to 160
Rooms
Room 1
Room 2
Room 3
Boss
Father Kwismas β
PAPA NOWEL
Lvl 110
Dungeon mechanics
The best approach is to clean up first while making sure to stay well away from Father Kwismas. Try to kill the Yiti first, then the Crackler. MP removal can be very handy to avoid ending up in melee with the bad guys!
Achievements
End of the dungeon
To leave the dungeon, talk to Hector Kwismas again: