Today, there are also the content creators, who make sure that the hotel’s fire-red-and-white exterior is instantly recognizable to even those who have never set foot on the grounds: Emily Ratajkowski has posted from their terrace—as has “queen of RichTok” Becca Bloom. In fact, Bloom has not one, not, two, but 13 Instagram posts dedicated to the hotel.

Why? Simply put, it is a matter of taste. Le Sirenuse has, well, impeccable amounts of it: an art collection includes Old Masters as well as modern works by Alex Israel, Rita Akermann, and Karl Holmqvist; in Franco’s Bar is an ornate limoncello-yellow ceramic fountain by Giuseppe Decrot, inspired by the intricate Baroque courtyard fountains of the 16th and 17th centuries. (Le Sirenuse has a dedicated contemporary art curator, Silka Rittson Thomas.) Rooms overlooking the Tyrrhenian Sea have balconies, canopy beds with crisp white linens, and floors made of handpainted Vietri tiles. The restaurant, La Sponda, is a masterclass in biophilic design: Vines cover the ceiling and lemon trees stretch out of grand emerald green tiled planters. Wrought-iron chandeliers, mimicking waxy green leaves, hang from the barrel-vaulted ceilings. At night, the space is lit with 450 candles, creating an ambience so romantic that even a Hatfield or McCoy could fall in love if seated across from each other at the table. And often, that table is under the name of the Sersales themselves: “All summer they’re almost always there, hosting impossibly large tables at La Sponda. I was back in July and it was even more beautiful than I remembered it,” Melanie Masarin, founder of Ghia, said about her recent stay at the hotel. Augusta Cole, a wedding planner to the one percent, tells me that many of her brides are so inspired by the aesthetic of Le Sirenuse and its rooms that they request it on their moodboard when planning their lavish affairs.

Then there’s the pool. Perched cliffside with one side overlooking the crystalline waters, the other looking at the stacked rainbow villas of Positano. The bottom is a swirling mosaic, done by Swiss artist Nicolas Party, a Euro-summer take on the iconic aquatic style of David Hockney. “There is an intimacy and authenticity that simply can’t be replicated, a feeling that you’re stepping into a living history rather than just checking into a hotel,” Christine Gachot, an AD100 interior designer, says of the Le Sirenuse.