- For the Chinese version of this level, see Big Wave Beach - Day 20 (Chinese version).
- For the Chinese version of this level before the v1.8 update, see Big Wave Beach - Day 20 (Chinese version: pre-1.8).
Big Wave Beach - Day 20 is the twentieth level of Big Wave Beach in Plants vs. Zombies 2. The tideline is located between the first and second column, making the level slightly harder. When this level is finished for the first time, the player unlocks the Tiki Torch-er, the Endless Zone of Big Wave Beach.
- The small number next to the zombie icon means that zombie will always appear in that lane, with 1 being the topmost lane and 5 being the bottommost one.
|Waves||Non-dynamic zombies||Ambush zombies||Note(s)|
|3||3 5 1||None|
|4||2 4||None||100% Plant Food|
|6||2 3 4 3 3||None||First flag|
|7||600%/7 Plant Food; water reaches 7th column; Low Tide!|
|9||4 2 5||None|
|10||5 1 3 1 5 3||None||Water reaches 6th column|
|11||1 2 4 1 1||None||Water reaches 4th column|
|12||1 2 3 4 4 5||None||Second flag; water reaches 2nd column|
|13||2 4 1 5 3||None||500%/7 Plant Food|
|14||Water reaches 8th column; Low Tide!|
|15||2 3 5 3 5 4||None|
|16||2 4 3||None|
|17||2 2 1 3 2||None||400%/7 Plant Food|
|18||2 4 2 4 3 1 1 1 1 5 5 5 5||None||Final flag|
Created by AWPXML
- Required plants:
- Dig up the two rightmost Lily Pads for extra sun. Plant a full column of Sun-shrooms in the first column. When three zombies appear, drown one with a Tangle Kelp immediately and kill another with a Magnifying Grass. Wait until the Tangle Kelp recharges again, so you can use it to kill the third zombie.
- Drown the Conehead with a Tangle Kelp and kill the Imp with a Magnifying Grass. Make sure you have a whole column of Magnifying Grasses and use it to kill the zombies, until the first low tide. Once you have enough sun, you can start planting Threepeaters.
- In the first low tide, three Surfer Zombies will appear. Use a Cherry Bomb to kill at least two of the three along with other zombies and make the last one waste its surfboard by placing a Sun-shroom in front of it. Upon seeing the Buckethead, make it eat a Sun Bean fed with Plant Food to produce a lot of sun.
- In the second flag, kill the two Surfer Zombies immediately with Magnifying Grasses. In the second low tide, use a Cherry Bomb and launch a lawn mower if needed or use Magnifying Grasses to kill the zombies.
- In the final flag, simply use Magnifying Grasses to kill the zombies.
Created by Bismabrj
Note: When using this strategy, it is fine to lose a few lawn mowers due to this level's difficulty.
- Required plants:
- Start by planting Twin Sunflowers in the first column. Kill the first few zombies using either Tangle Kelp, Guacodiles, or Repeaters. If you use Repeaters, plant it on the second column, and, if possible, plant a Wall-nut on the fourth column of the same row. Once the first column is filled with Twin Sunflowers, fill the second and fourth column with Repeaters and Wall-nuts, respectively. Finally, plant Winter Melons in the third column. Remember to plant Lily Pads before planting to the right of the tideline.
- When Octo Zombies arrive, use either the Tangle Kelp or Guacodiles to stop them. However, if they have thrown octopi at one of your Winter Melons, use Plant Food on the Repeater in the same row. If the Repeater is their target, and there is no Winter Melon in the same row, plant either another Repeater or a Winter Melon in the third column of the same row. If, however, the second and third column of said row is filled up with octopi, replace the Twin Sunflower in the same row with a Repeater before using Plant Food on said Repeater. It is fine to leave octopi in the fourth to ninth column. Also, remember that you can dig up a target plant before an octopus lands on it to prevent the octopus from taking tile space.
- When the Deep Sea Gargantuar arrives in the final wave, keep using Tangle Kelp and Guacodiles to stop it.