An Olympic silver medallist says he was "up for a career change" when he agreed to buy a boat later used in an alleged plan to import up to $200 million worth of cocaine into Australia.
But former world champion kayaker Nathan Baggaley says he and younger brother Dru Baggaley wanted to run whale-watching tours from Byron Bay.
The pair are standing trial in Brisbane accused of being involved in a plan to get 650kg of cocaine from a foreign vessel off the NSW coast.
Nathan Baggaley, 45, said his brother "seemed genuine" when he spoke about the whale-watching venture in May 2018.
The Olympic kayaker worked as a fibre-glasser mainly making surf skis, but was up for a career change, he told the Brisbane Supreme Court on Monday.
He bought a rigid-hulled inflatable boat (RHIB) and equipped it with navigation equipment, a wireless router and a satellite phone.
"I had no suspicions it was going to be used for anything like this," Nathan Baggaley said.
Dru Baggaley earlier told the court he was just "following orders" made by Anthony Draper when he threw bundles of cocaine out of the RHIB as it was pursued by a navy vessel on July 31, 2018.
Dru Baggaley says he was vomiting from being seasick while the two men travelled hundreds of kilometres into the ocean.
Draper had told Dru Baggaley to join him on the boat "whether you like it or not", warning he would tell "dangerous people" where his family lived, the younger brother has told the court.
Asked if he was saying he had been kidnapped, Dru Baggaley said: "I didn't want to be on that boat, that's for sure."
But Draper just turned on him with a "look in his eyes", Dru Baggaley said on Monday.
After about 11 hours at sea the pair met up with another boat from which cocaine packages were thrown, the trial has heard.
Dru Baggaley said they were returning to the mainland when he heard Draper swearing and saw a ship coming towards them.
As Draper tried to "outmanoeuvre the ship", Dru Baggaley told him to "just stop".
But instead Draper said he must throw parcels overboard to "lighten the load".
He said Draper had asked him to buy the boat and get it ready to meet a ship from Indonesia that would bring tobacco to be sold in Australia.
Draper provided $100,000 cash for the boat, telling Dru Baggaley he could keep the RHIB afterwards.
Dru Baggaley said he roped in his brother to help with the RHIB purchase because he "didn't have enough time".
Draper, 56, earlier told the court he flew from Sydney to Coolangatta at Dru Baggaley's request, thinking they were going a few kilometres offshore to pick up "smoko" which he thought was marijuana.
The court heard Draper testified as part of an undertaking made when he received a reduced sentence during earlier court proceedings.
Three people have been banned from the courtroom where the trial is continuing after jurors raised concerns about being stared at and followed.
Proceedings were adjourned early on Friday afternoon after jurors raised concerns about three "young men" staring at them for extended periods earlier in the trial.
Three people had been identified and would not be allowed back in the building during the trial, Justice Ann Lyons said on Monday.
Further investigations were "ongoing".
"We don't know why the persons who were thought to be staring were here," she added.
Strategies were also put in place to ensure the safety of jurors for the rest of the trial after one juror also believed they were followed last Wednesday evening while walking to the train station, despite changing course.
Nathan and Dru Baggaley both pleaded not guilty to a single count of attempting to import a commercial quantity of cocaine into Coolangatta on the Gold Coast between December 2017 and August 2018.