Ice Cave Quest
From Realera Wiki
Name: Ice Cave Quest.
Location: Frostholm.
Requirements: Completed Anvers Island Quest, Explorer Society Quest - Explorer rank.
Reward: 8 Enchanted Spears, a Northwind Rod, 12 Dragon Tongues, a Blue Gem and 20 Frosty Hearts.
Start from Elvers boat.
Note that you will face 5 Ice Dragons there.