SES search for missing hikers at Halls Gap SES crews are searching for a group of lost hikers at Halls Gap in Victoria's west this evening. An SES spokeswoman said the walkers became lost on the Pinnacle walking track before 6.30pm. "Stawell SES will be going in to guide the people out," the spokesperson said. Until they find them we hope that they stay where they are until they can be located. Police are assisting SES with the search near the vicinity of Mt Victory Rd, Grampians Rd and Wonderland Rd in Halls Gap. The exact number of hikers is currently unknown. more to come.