The Summer Island was an event in which Cocopow had invested an island, and it was the participants' job to catch as many as possible, to help reduce the amount. The event also offered a story involving hidden keys and buried treasure. The event ran for 12 days.

1st Place:
Light, with 5000 points!

2nd Place:
Koizumi_Koharu, with 4000 points!

3rd Place:
Arthzalcotl, with 2850 points!