Meet Melbourne water ballet ensemble The Clams.
They've brought periods to the last place you'd want them: a public pool.
With their debut performance Crimson Tide: A Period Piece, The Clams will next week trample taboos and clam-ourise menstruation to raise money for women who can't afford essential sanitary items.
Clams founder Francis van Beek said her troupe wasn't embarrassed about their menstrual cycles.
"What we are embarrassed about is that there are women in this wealthy country who are living without basic necessities like pads and tampons for this basic bodily function," van Beek said.
There is still a 10% "tampon tax" in Australia because sanitary items are classed as a "luxury" item which attracts GST.
"The fact that periods aren't a big deal hasn't translated to our predominately male political leaders who still feel it is appropriate to charge us a luxury tax every time we purchase a basic sanitary item," water ballerina Joanna Cooney told BuzzFeed News.
"It started as a fun, silly, ridiculous thing among friends to make our summer great."
"But we recognise there are people who don't have access to this stuff and fall through the cracks."
All proceeds from their first performance will go to Share the Dignity, which makes sure disadvantaged women around Australia have access sanitary items because The Clams believe sanitary products are a right, not a luxury. Period.
The "Bloody Good Show", on March 18, will involve choreographers Holly Durant and Gabi Barton with music provided by DJ Whiskey Houston.