Youngsters were seen out in groups jogging, cycling, in-line skating and playing football, mostly without wearing any masks to protect them from the haze.
The tennis courts have since been converted to an enclosed in-line skating arena, and the original playground equipment and two basketball courts have been upgraded.
The facilities may include a combination of fields for baseball, softball, soccer and football; tennis courts; skateboard parks, in-line skating rinks, aquatic centers and recreation centers.
Transponder timing is used in sporting events around the world, including running races, marathons, triathlons, cycling and mountain biking competitions, in-line skating and cross-country skiing.
Active transportation refers to any form of human-powered transportation, most commonly walking and cycling, but also using a wheelchair, in-line skating or skateboarding.
Bicycle helmets can also be worn when in-line skating or roller skating, but skateboarders or skaters who perform tricks should consider helmets made for such activities.
