Frozen desserts are a great way to beat the heat after a summer dinner. The pastry chef and columnist Laura Donnelly shares some of her favorites.

Sweet shop pop-up at the Clubhouse, margaritas to go from Rita Cantina, Springs Tavern and Grill and Doubles open for business

The ex-New York City police commissioner will be introduced by David Alpern, radio man and former Newsweek editor, on Friday at noon at the library in Southampton.

A run-swim-run event to benefit the Hampton Lifeguard Association’s junior and senior entries in August’s national lifeguard tournament in Hermosa Beach, Calif., is to be held tomorrow at Amagansett’s Atlantic Avenue Beach, and, on Saturday, the first I-Tri youth triathlon in three years is to be contested at Long Beach in Noyac.