Brave and the Bold (1955 Comic)

Title: Brave and the Bold 1955 comic issue #189
Description: Scuba and non-scuba diving.

Thank you Rock! 

Archie's Explorers of the Unknown (2013 Comics)

Title: Archie's Explorers of the Unknown 2013 comics Issue #50 Pages 138, 139, 146, 147
Description: Mermaid.

Sensation (1942 Comics)

Title: Sensation 1942 comics issue #9
Description: The girl tries to hold her breath to avoid inhaling the gas. 

All-Star Squadron (1981 Comics)

Title: All-Star Squadron 1981 comics issue #61
Description: The girl hides underwater.

Barbie Fashion (1991 Comics)

Title: Barbie Fashion 1991 Issues #22, #39
Description: Mermaid and Scuba.

Thank you Rock!

#22

#39

Tomb Raider (2014 Comics)

Title: Tomb Raider 2014 Issue #2
Description: She dives underwater.

Thank you Foolinthewater!

Dragon Ball Multiverse (Web Manga)

Title: Dragon Ball Multiverse Pages 263, 264, 265, 273, 274, 275, 276, 277, 278.
Description: Breath holding in space.

Adventure (Comics)

Title: Adventure Comic Issue #451
Description: The girl is holding her breath in space.

Adventure (Comics)

Title: Adventure Comic Issue #446
Description: A tied girl gets tossed into the water.

Un été en apnée (Comics - French)

Title: Un été en apnée (2014 French comic)
Description: Underwater snorkeling scenes.

World's Finest (Comics)

Title: World's Finest Issue #1
Description: Supergirl falls underwater and is rescued.

Supergirl (Comics)

Title: Supergirl 2011 Issue #12
Description: She nearly drowns.