The family of Greg Monks has made an appeal for help as the search for the missing Scotsman enters it sixth day.
The 38-year-old vanished on the first night of a stag do in the resort of Albufeira last Tuesday.
He has since been picked up on CCTV, walking down a street several kilometres away from his accommodation, at around 3am on Wednesday morning.
His cousin wrote in a social media post today: ‘The family of Greg Monks is actively working with the local GNR in Albufeira to support the ongoing efforts to locate him.
‘We are awaiting formal instructions from the authorities to organise a larger search operation.
‘To this end, we are appealing for the support of people with experience in large-scale search and rescue operations, since, as an ordinary family, we do not have the knowledge or experience necessary to deal with a situation of this nature.
‘Given the number of police personnel and resources currently in the region, it is clear that the resources available to the local GNR are insufficient to respond adequately to the complexity of this case.
‘Therefore, we urgently request the intervention of the higher authorities in Portugal, as well as the increased involvement of the British government.
‘We also appeal to all people with political connections to exert their influence in order to mobilise institutional support and additional resources. Greater media visibility at a national level could also be crucial to accelerating these efforts.’
An image shared by Greg’s family on social media over the weekend shows him heading out with friends on the night he disappeared.
The smiling holidaymaker is seen wearing a navy blue Nike t-shirt.
Greg had been staying at the Novochoro Apartments, a tourist apartment complex containing 31 units.
But in an ‘important update’ on Sunday night, his sister Jillian said he had been picked up on CCTV heading in opposite direction of his accommodation.
She said: ‘Greg has been seen on CCTV going further in the opposite direction of his accommodation.
‘This was still in early hours of Wednesday, nothing more recent… We need to share this to get to the people of this area to please look and hopefully once the police have done their searches to help search this area! Or any rescue assistance with drones etc.’
The area where he was last traced to is an upmarket neighbourhood filled with luxury villas.
It is also a 12-minute drive from the Novochorro apartments where Greg was staying.
It continues to be in the area of Cerro de Aguia, where Jillian said over the weekend that police were focusing their search.
She said: ‘As previously stated this is so unlike Greg and we are truly desperate for answers.
‘I am now seeking help from residents of the Cerro de Aguia area to please check any home cameras or doorbell footage between 2am and 5am, as police believe he was in the area around this time.’
She urged anyone with cameras that cover any part of the area to get in touch with her via Facebook, leaving their name and phone number.
Do you have any information that could help this case? Email [email protected]
