After four days, the Honolulu Fire Department on Tuesday discontinued its search for Daylenn “Moke” Pua, a Kona teenager who disappeared while hiking in the Koolaus, but friends, family and volunteers — including drone operators — will continue the search Wednesday.

“The crew — they work hard up there,” the teen’s father, Donald Pua, said. “All this ohana, they work hard. They not giving up.”

The family and supporters stood in a circle holding hands and praying at day’s end at Moanalua Valley Neighborhood Park, the base of the volunteer operations.

The 18-year-old Pua, the fifth of seven children from Kee in South Kona, was visiting his grandmother in Waianae and caught the bus to climb the Haiku Stairs, known as “Stairway to Heaven.”

Two military nurses from the mainland hiking Monday reported they heard a voice calling for help on the Moanalua Valley side of the Koolau mountains.

HFD considered the two witnesses credible, and extended their search Tuesday, a fourth day.

On Tuesday, HFD searched till 2 p.m., exhausted all avenues, looking for any signs of slipping and falling, scuff marks, broken vegetation, said Capt. David Jenkins.

Poor weather conditions, clouds, rain and wind hindered the search.

On Friday afternoon, Pua’s grandmother, Martha Bear, called police when he failed to return. Authorities traced his cellphone to the Haiku Stairs. He posted photos on social media