THE grim search for the body of drowned Ipswich teenager Duncan Wilmott will enter its fourth day today.
Tributes have flowed for the Ipswich State High School student, who would have started his first day of year 12 yesterday.
Instead, his grieving family and friends continued to face an anxious wait, as police divers and SES volunteers persisted in scouring the body of water that claimed his life on Monday morning.
Senior Sergeant Paul Andrews said divers spent several hours at Aqua Lake yesterday.
"They've been down to the maximum depth and they were diving for the maximum time," Snr Sgt Andrews said.
"They will be going back again tomorrow."
Scanning and sonar equipment was also used as part of the search of the decommissioned quarry that has been filled with water and has become a popular swimming spot with young Ipswich people over the years.
Police divers have faced poor visibility, cold water temperatures and submerged hazards while carrying out the search of the lake, which reaches depths of anywhere up to 80m in places.
SES and Polair has assisted with sweeping the surface of the lake at regular intervals.
Tributes to Duncan and messages of support for his grieving family have been flowing.
Duncan's father Ryan notified friends of the tragedy via Facebook on Monday evening, triggering almost 150 people to express their condolences.