UK contestant Zara McDermott, speaking to Closer, offered up the explanation that contestants can’t wear microphones in the pool, so the production team prefers that they stay on dry land. “You’re not allowed to really talk or have any conversations if you don’t have a mic on,” McDermott explained. “So obviously if you’re going to have a chat you’re encouraged to get out and then that’s when they’d film.” While this makes perfect, practical sense, there may also be another explanation.
Another UK contestant, Kady McDermott (no relation), also speaking to Closer, had an alternate explanation for why the contestants never use the pool: “We didn’t actually get in the pool a lot because it’s so cold,” McDermott explained. “Because we went into the villa at the end of May and it’s just about getting into summer, the pool hasn’t been heated or anything.” Of course, both explanations can be true.
As one Reddit user, u/SunsetDreams1111, pointed out, going in the pool just generally doesn’t make good television. “It’s not great TV, just like eating. We know they eat, but we don’t always see it. When editors need to cut a show down, they need a lot of dialogue to fill in the gaps.” That’s a good point, as there are probably many activities that the contestants engage in that never make it to the final cut (and a lot of it probably for very good reasons). They could, of course, set up full live streams of the moments that are cut from the final edit of the show, much like “Big Brother” does, but viewers are probably better served cutting straight to the juicy drama.