The search was scheduled to continue Monday for a 15-year-old boy who was swept into waters off Kealakekua Bay last week.
Hawaii County fire officials said the search will likely end Monday night, unless new evidence is found.
In the search, which included Coast Guard crews last week, there were no signs of Tyler Madoff.
The Madoff family is blaming a Colorado tour company for what happened.
Madoff was kayaking with a three-week Ultimate Hawaii Adventure Tour on July 4 when a rogue wave swept him and five other participants into Kealakekua Bay.
Bystanders and two representatives from Hawaii Pack and Paddle, who provided the kayaks for the tour, helped to rescue five paddlers from the pounding surf.
Madoff's parents credited those who saved the lives of others.
"You saved other families from this great sadness that we now feel," said Michael Madoff, Tyler's father. "You are heroes and we will always remember you."
"They were still in the area and were instrumental in that rescue," said Malia Louis of the Visitor Aloha Society of Hawaii on Hawaii Island. "Two in particular, Ola and Letisha, were in the water giving instructions as well as bring the children up to the surface. They were literally being plucked out of the water."
All of those rescued are expected to be okay, including one teen who was airlifted to Queen's Medical Center last week.