Police are appealing for public assistance to help locate missing hiker Richard Johns.
Officers have been told the 52-year-old set-off alone on a hike from Halls Gap to Barooka Lookout about 2pm yesterday.
Richard is from England and is not familiar with the area.
Emergency Services were notified this morning about 9am after he failed to return and family had not heard from him.
Police Air Wing along with officers on the ground, Parks Victoria and SES are actively searching the area.
Richard was last seen wearing a blue zip-up jacket and blue pants.
Police have released an image of Richard and urge anyone with information on his whereabouts to contact Ararat Police Station on 53355 1500.