Dadae Dong has a pleasant little pool near Molundae, at the mouth of the NakdongRiver and near Dadae Beach.Three thousand, five hundred to swim, open for lap swimming weekdays 12:00-3:30pm.  I think it is also open for laps on weekends.  I’d like a deeper pool and one a little cooler, but this is clear watet and never seems crowded.

Busan Medical Tourism (about half way down the page) has some strange information on the pool.  I think they have two entries mixed up. The picture is right, but there is no climbing wall, despite the attached blurb: Come and experience the increasingly popular artificial rock climbing here at the Youth Arpina artificial rock climbing center.