What year did Ocean Park Hong Kong,a marine mammal park, oceanarium, animal theme park and amusement park situated in Wong Chuk Hang and Nam Long Shan in the Southern District of Hong Kong, change its Ocean Park Halloween Bash to  All-Day-and-Night Halloween Celebration?
Ocean Park Halloween Bash: Ocean Park Halloween Bash (海洋公園哈囉喂) is an annual Halloween event held by Ocean Park Hong Kong. Ocean Park Halloween Bash:  It has changed to All-Day-and-Night Halloween Celebration in 2013. Ocean Park Hong Kong: Ocean Park Hong Kong, commonly known as Ocean Park, is a marine mammal park, oceanarium, animal theme park and amusement park situated in Wong Chuk Hang and Nam Long Shan in the Southern District of Hong Kong.
2013