- For the international version of the level, see Big Wave Beach - Day 30.
Big Wave Beach - Day 30 was the thirtieth level of Big Wave Beach in the Chinese version of Plants vs. Zombies 2. It was a boss battle level. The player battled against the Zombot Sharktronic Sub, in a Last Stand level where sun producing plants were allowed. All zombies (including the Zombot Sharktronic Sub) were at level 4. When this level was finished for the first time, the player earned a World Key.
- * A gate can be unlocked with a key after completing this level
^ Conjectural name