Where is the underground castle 3 hunting spear?

I'm going to Kamiao to kill the Green Dragon and get a hunting spear.

1, hunter level 50 can go to Tiefeng (like Storm City) to find a hunter trainer to take over the task of "hunter amulet" and go to Aisara to find "Odinke".

2. Received the task of "antlers with moss feet" from Odin, and Aisara played "feet with moss feet" to complete it.

3. Ask Odin to take on the task of "Breaking the Waves" and play "Breaking the Waves" in the shallow sea on the right side of Aisara (it takes time).

4. Ask Odin to pick up the "Green Dragon in the Temple (Dungeon)". This task is to kill the Green Dragon of Haka Temple.

5. After killing, you can choose one of "spear hunting", "Tyrannosaurus Eye" and "Tyrannosaurus Tooth".