
Girls dressed in bikini swimwear
This is a list of the swimwear that the main characters wore throughout the series.
H2O: Just Add Water[]
Emma[]
- Whenever Emma swims in competition, she wears a sporty one-piece swimsuit.
- Throughout the first season, Emma wore a Brazilian triangle blue bikini top with a matching side-tie bottom.
- At the end of the second season, Emma wore a haltered bandeau white bikini with teal stripes.
Cleo[]
- Throughout the first season, Cleo wore a triangle white bikini, with a tropical (hibiscus flowers) print and matching strings.
- At the end of the second season, Cleo wore a plain purple bikini.
- At the beginning of the third season, Cleo wore a pink bikini with a lace print covering the top. She also wore an orange towl with pink flowers as a makeshift sarong when not sunbathing or swimming.
- In the seventh episode of the third season, Cleo is wearing a white bikini with colorful stripes and matching bottoms.
Rikki[]
- Throughout the first season, Rikki wore a light pink bikini with a swan pattern and a side-tie bottom. She tends to wear shorts, but no shirt.
- At the end of the second season, Rikki wore a black bikini with a textured white and a side-tie bottom.
- At the beginning of the third season, Rikki wore a royal blue bikini. She wears jean-shorts when swimming or sunbathing.
Bella[]
- Throughout the third season, Bella wore a white bikini with a colorful pattern.
H2O: Mermaid Adventures[]
Emma[]
- Whenever she swims in competition, Emma wears a sporty one-piece swimsuit.
- Throughout the series, Emma wore a swimsuit consisting of a powder blue bikini top with a pattern of jungle flowers in navy alongside the edges. Her bottoms, however, have gone through 2 variations;
- In the series premiere, Emma's bikini bottoms shared the exact same colors and patterns as her top, but with a navy blue waistband.
- For the rest of the series, Emma's bikini bottoms were fully plain navy blue, and she now wore a coverup in the colors and pattern of her top.
Cleo[]
- Throughout the series, Cleo wore a purple sling bikini with a black ring.
- In jaws-ache, she wore a regular bikini with a blue top and dark blue bottoms, with the waistband matching her top.
Rikki[]
- Throughout the series, Rikki wears a side-tie bikini with amber and brown stripes.