Unlike summertime, pop-up fitness studios, Exhale’s Bridgehampton location offers barre classes year-round. Several instructors lead the challenging workout daily except Wednesdays (even they need a day to recover). Exhale also hosts a wellness retreat with healthy meals and barre, HIIT and cardio classes at Gurney’s Montauk from January 24-26. 2415 Main Street; 631.537.2401; exhalespa.com. gurneysresorts.com.