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.
The Colorado company Bold Earth Teen Adventures led the kayak excursion out into Kealakekua Bay. Officials with the Department of Land and Natural Resources said the group was not permitted to kayak in the area.
Now, Tyler Madoff's family is blaming the adventure group for its poor handling of the entire situation.
"The representatives from Bold Earth expeditions have shown poor judgement and extremely poor character," said Michael Madoff. "You lied to me to my face, and you know it. Shame on you."
Our calls to Bold Earth Teen Adventures were not returned.
The Madoffs are now headed back to New York to care for Tyler's two siblings. They left with this final message to the teen who they say was an avid swimmer, football player, and musician: "We love you son. We will carry you in our hearts, always."