There's Always Time for the Pool
A local shop owner gives Haruka tickets to a new indoor pool. We learn that Chiaki doesn't know how to swim and doesn't want the others to find out. Later, Kana tries to teach Chiaki how to swim and help Chiaki meet her goal to swim 100 meters. Haruka sleeps the entire time, trying to ignore her sisters, until her highschool friends throw her into the pool.
Aired 25/02/2008EP 8 - There's Always Time for the Pool
2008
Minami-ke: Okawari
A new year has started, and the three Minami sisters—Haruka, Kana, and Chiaki—are still living together without adult supervision. As the seasons pass, the girls continue to make friends and find new interests. No matter where they are or who they hang out with, the sisters' time remains ever vibrant.
(Source: MAL Rewrite)