Choose a bathing suit top with an interesting neckline (like this cut-out, blush pink Marysia style), pair it with a flowy, high-waisted skirt, and add some delicate jewelry and tricked-out slides. Now walk into your nearest fancy hotel, saunter past the front desk, and head straight for the pool.
La Jolla Bikini Top, $143, marysiaswim.com; Skirt 148, $158, lpathelabel.com; Off White CD Bag, $425, karastore.com; X Choker, $276, ladygreyjewelry.com; Daisy Cuff by Lizzie Fortunato, $130, concreteandwater.com; Jen Slide, $295, dearfrances.com.
If your bathing suit is on the sporty side, go all-in with athleticwear extras. Try layering a neoprene one-piece with track shorts, leave a windbreaker unzipped over a striped, crop-top-style bikini, or pair your swim trunks with a mesh tee (this cotton style by Sunspel is breathable but not too sheer).
Left: Crinkled Hologram Small Backpack by Kara, $495, openingceremony.com; Jumpstart One-Piece, $169, pe-nation.com; Sable Short, $85, aritzia.com; Aura Jacket, $165, aetherapparel.com; Postmodern Cuff in Red, $205, lizziefortunato.com; Suede Platform Women's Sneakers, $100, puma.com; Center: Nylon Packable Jacket, $150, torysport.com; Hermosa Top, $112, mikoh.com; The Heat Skirt, $240, pe-nation.com; Sculptural Cuff in Clear, $195, lizziefortuanto.com; Suede Platform Women's Sneakers, $100, puma.com; Right: Men's Cotton Eyelet Stitch T-Shirt, $90, sunspel.com; Ombre Shorts, $275, thorsun.com; Suede Classic Badge Sneakers, $75, puma.com.