Pretty in two shades of pink is Anna Apacheco, age 4, and her mother, Jenypher Apacheco, Nashua residents waiting their turn at a Fitness Challenge running race that entailed sprinting, lifting, winding through pylons, and returning to a police officer holding a tape at the finishing line. Photo by LORETTA JACKSON

Julia Montney, age 6, a Nashua athlete who is especially adept at soccer and gymnastics, kicks a soccer ball directly into the target at an inflatable play station well populated by participants at Nashua's National Night Out. Photo by LORETTA JACKSON

A short wait in line led to a Fitness Challenge sprint for Anna Apacheco, 4-years old, who maneuvered an obstacle course of sprints, weight lifting, running through pylons and racing to a finish line indicated here by Officer Gabriel Reyes. Photo by LORETTA JACKSON

Fran Grady, right, who was on hand at National Night Out with her husband, Bill Grady, to represent Nashua Elks Lodge No. 720, greets the Rourke Family and the Rakesh Family at the festivities.  Photo by LORETTA JACKSON

Some of the event's hundreds of attendees smile and say, "Cheese," before ordering cheeseburgers, hot dogs, ice cream, fried chicken and other treats provided free at Nashua's National Night Out. Photo by LORETTA JACKSON

National Night Out provided an opportunity for attendees to learn from these demonstrators, from left, Officer Josh Arruda, Officer Tim Donahue and Officer Derek Ibell, the value of drones that often are used for scanning an area so police officers can safely enter, for an overhead view of SWAT operations, for aerial searching of someone lost, and for many more tasks remotely monitored.  Photo by LORETTA JACKSON

National Night Out provided an opportunity for attendees to learn from these demonstrators, from left, Officer Josh Arruda, Officer Tim Donahue and Officer Derek Ibell, the value of drones that often are used for scanning an area so police officers can safely enter, for an overhead view of SWAT operations, for aerial searching of someone lost, and for many more tasks remotely monitored. Photo by LORETTA JACKSON

National Night Out in Nashua included visits by dozens of children to a blue tent manned by Officer Jon Turcotte, who introduced the police department's comfort dog, his K9 dog, "Ellie," a Golden Lab adept at tracking, evidence recovery and playing Hide & Seek. Photo by LORETTA JACKSON

A fitness exercise, conducted by Nashua Police Athletic League (PAL) Officer Bennet "Ben" Stusse, is mastered here by Eloise Kennedy, age 9, who is learning from him how to lift an iron kettlebell, a device used in many gyms for weight training. Photo by LORETTA JACKSON

The intricate mechanics of a Hazardous Device Unit Robot whose components are explained here by Officer Zachary "Zach" Keller to Sudais Duran, of Merrimack, who learns the robot is often used to identify suspicious packages, move suspicious items safely to an X-Ray machine or safely detonate or destroy suspicious items. Photo by LORETTA JACKSON