A "beachside challenge" forces the housemates to compete in the sand for a chance at the Truth Booth.
In this episode, the contestants attend a themed "White Party" to let loose, but the festivities are quickly overshadowed by romantic tension and a high-stakes challenge. March 18, 2014 [S1E9] White Party
The "White Party" is a popular trope in television, often appearing in other major series: "Are You the One?" White Party (TV Episode 2014) - IMDb A "beachside challenge" forces the housemates to compete