Della Dolwyn does not win at anything like her sisters Helen (ballet) and Elaine (swimming) and receives constant put-downs because of this. Della resolves to win at something. She settles on synchro swimming and sets out to form a team in secret.
- Della Dolphin – Mandy: #481 (03 April 1976) – #490 (05 June 1976)
Diane Lucas and Carolyn Fisher, see a synchronised swimming show while on a school trip and are interested in learning more about it. A local councillor hires on Dot Cameron as a second coach at the swimming pool. The team become the Mermaids.
- So You Want To Be a Mermaid!– Diana: #187 (17 Sep. 1966) – #196 (19 Nov. 1966)
- The Mermaids – Diana Annual 1969