Talk:Tutorial: Leveling/@comment-26287731-20150620110206/@comment-25730832-20150620132705

http://kancolle.wikia.com/wiki/User_blog:Shinhwalee/Guide_to_Power_Leveling_Heavy_Cruiser_%28CA%29_in_World_3-2A

Pretty much that. You can try other places but 3-2-A gives most stable result with least casualties.