Travel

Sag Harbor

Establishment neighborhood
Grindstone Coffee & Donuts
7A Main St., Sag Harbor
Grindstone’s makes great single-origin organic coffee and flavored lattes—but everybody’s here on Saturday mornings for the yeasted donuts, which are light, not too sweet, and unfairly good. Their evergreen menu leans toward the classics, like simple sugar, glaze, or strawberry sprinkle, while specials lean creative or grown-up. (Perhaps you’ll find Boston cream, lavender, or lemon poppyseed.) Don’t come too late in the morning; they sell out fast.
Forma Pilates
31 Long Island Ave., Sag Harbor
People love Forma Pilates not only for its superstar instructors and challenging method, but also for its exclusivity; in order to register for classes and private lessons, you need a referral from someone who already goes here. The studio is popping up for the summer in a private studio inside Post House, with intimate classes (there are just six reformers in the 1,200-square-foot space), views of Sag Harbor Cove, and a powder room stocked with goodies from Summer Fridays, Dr. Barbara Sturm, and RMS Beauty, Evolve, and the Skinsheet.