4th Anniversary Party

The 4th Anniversary Party was an event celebrating Club Penguin Rewritten's fourth anniversary. It was confirmed on Club Penguin Rewritten's Discord Server on January 29, 2021. It began on February 12, 2021 and ended on February 15, 2021.

Aunt Arctic visited during the event with a new background.

Stamps
The following stamps were also available to collect during this event:

Trivia

 * It is the first party/event on Club Penguin Rewritten's HTML5 client.
 * It is the first Club Penguin Rewritten anniversary party to have the Iceberg Tipper available as a free item.
 * Along with this, it is also the first anniversary party where you did not have to tip the Iceberg to earn the item.
 * It is the first Club Penguin Rewritten anniversary party to not have the Book Room, Night Club, or Town decorated.
 * It is also the first Club Penguin Rewritten anniversary to not be accompanied by an anniversary t-shirt.
 * It is the first Club Penguin Rewritten anniversary party to not have a new yearbook.
 * The Anniversary Cake originally lacked the CPR logo and the middle right ribbon was also different.
 * Furthermore, there were three other color options available before the final cake was chosen.
 * The event was supposed to end on February 14, but it ended a day later.
 * It is the first Club Penguin Rewritten anniversary to have its anniversary cake pin available after the event instead of during the event.