THE BRONX - The surfaces on park structures are spiking around the borough to temperatures over 160 degrees.

Geoffrey Croft, of NYC Park Advocates, used an infrared thermometer on some of the playgrounds and turfs in parks around the borough. Mullay Park hit 160 degrees on the artificial turf, which is known to cause heat stroke. At Nelson Playground, the readings on the park's black rubber mats hit 168 degrees.

Croft says to make sure children keep their shoes on in parks, as it is very easy for them to get burned.

NYC Park Advocates is a nonprofit watchdog group for the city's parks.