The entrance to the main car park is 1 km along Kennedys Bush Road.
Metro(external link) website has up-to-date bus information.
Gates are open from 7.30am to 7pm and, during daylight savings months, from 7.30am to 9pm.
There are two toilet blocks in Halswell Quarry Park as well as multiple drinking fountains and plenty of parking.
A horse riding arena is provided in the park but horses are prohibited in the adjacent conservation area.
Check the Halswell Quarry map to find out where everything is located.