Getting the shocking footage of 'the world's biggest dolphin slaughter' meant enduring grim conditions, and almost getting shipwrecked.
ITV News has obtained footage of dolphins being harpooned hundreds of miles off the coast of Peru and used as bait to hunt sharks.
Melissa Reid and Michaela McCollum appeared in court in Lima, but it is unclear whether they have been charged, their lawyer said.
The guilty please made by Melissa Red and Michaella McCollum, arrested with almost 12 kilos of cocaine in their luggage in Peru, will not be accepted, the prosecution said.
Yesterday the pair pleaded guilty to drug trafficking charges in front of a judge. However anti-narcotics prosecutor Juan Rosas said that as the new plea only claimed partial guilty for their actions, it would not be accepted by the prosecution.
Mr Rosas said the women would have to release a new statement, admitting they made up the story about being kidnapped and threatened. He said:
"A new statement is required by the women and they will have to admit not only that they came here to traffic drugs but also that they did not tell the truth with respect to them being kidnapped.
"They have to make a full admission of responsibility for all of the charges brought by the prosecution."
An earthquake has shaken buildings in Peru's capital Lima, Reuters reports, citing witnesses.
The lawyer representing Michaella McCollum has said he is unable to disclose the details of the hearing that took place on Tuesday.
Peter Madden said McCollum accepted the charges and a sentencing hearing will take place next Tuesday 1 October.
Madden said: "I intend to travel to Lima next week to attend the sentencing hearing and after the sentence is handed down by the judge, it will be possible make further comment."
Pictures have emerged of Melissa Reid and Michaela McCollum Connelly behind bars inside the court in Peru.
For six weeks they protested their innocence but this evening, the two young women accused of smuggling cocaine from Peru pleaded guilty to drugs trafficking.
It means Melissa Reid and Michaela McCollum Connelly will get shorter sentences than if they had lost court cases and they may be able to serve some of the time back home.
Neil Connery reports:
Melissa Reid and Michaella McCollum, who pleaded guilty to attempting to smuggle £1.5 million worth of cocaine out of Peru, will be sentenced next week at a new hearing.
The pair gave behind-closed-doors please, in the port town of Callao. A spokesman for the court in Callao said:
They will automatically have a sixth off from the minimum jail sentence of eight years and will be sentenced to six years and eight months in prison.
Sentencing will take place on October 1 at a new hearing.
The mother of Melissa Reid, the 20-year-old British woman held in Peru along with Michaella McCollum, told ITV's This Morning that she was pleading guilty to get back to her family. Speaking ahead of today's reported guilty plea, she said:
She was definitely carrying the drugs in her luggage. That's for sure.
But we still believe she was coerced into it. Obviously now we realise she needs to plead guilty just to get her home.
The two had the option of pleading guilty in exchange for a lower sentence.
A court spokesman confirmed the UK women's guilty pleas but said they had not yet been sentenced, Sky News reported.
– Callao court spokesman
Both women have pleaded guilty to drugs trafficking.
It means they automatically benefit from a sixth off the minimum jail sentence of eight years and will be sentenced to six years and eight months in prison.
Sentencing has not taken place yet and a new hearing where the women will be sentenced has now got to be arranged.
But it's likely that will take place in around a week's time.
Two UK women arrested last month trying to fly to Spain with 24lb of cocaine have pleaded guilty to drug smuggling charges at a court in Peru, Sky News reports.
Irish-born Michaella McCollum and Melissa Reid, from Scotland, are thought to have agreed to the plea in exchange for reduced sentences.
The pair face at least six years and eight months in prison with no eligibility for parole.
Michaella McCollum Connolly and Melissa Reid have been taken from the Peruvian prison where they have been held for eight weeks to a court hearing of the drug smuggling charges.
One or both of the British women are expected to plead guilty as part of a deal with prosecutors to secure a shorter sentence.