Two years ago, Aminah Knight, a former public-school teacher from New York City, had a plan to celebrate a significant Islamic holiday with a unique party for Muslim families in the Dallas suburbs. She wanted to hold the event at an indoor water park during Eid al-Adha in May.

Initially, the mosque she approached did not support the idea, as they opposed celebrating the holiday with a swimming party. However, Ms. Knight persisted in her mission. Her goal was to cater to families, particularly young women and girls who faced discomfort due to the attention their full-body swimwear, often worn in the Middle East, attracted at American pools.

She wanted to demonstrate that Muslim families enjoy swimming too, refusing to organize another generic bounce house party. Undeterred, Ms. Knight promoted her event by visiting various mosques throughout North Texas, engaging with the thriving Muslim community there. She also developed a website and distributed flyers for the occasion, which proved successful, drawing hundreds of attendees.

In collaboration with the water park hosting the event, Ms. Knight organized the gathering again the following year. She managed to rent the entire venue, attracting even more participants. As Eid approached this year, Ms. Knight made plans for the third iteration of what had become a yearly tradition among Muslims in the Dallas area.