A general view of Conceicao Moreno's home (not seen), in Sundy village near Santo Antonio, in Príncipe Island in Sao Tome and Principe, on August 5, 2026. Sundy is one of six "roças" that were added to the UNESCO World Heritage List at the end of July, in recognition of their architecture and their fundamental importance in the country's history. But most of the "roças" in São Tomé and Príncipe have been abandoned. They pose a major preservation challenge for this small island state in Central Africa, located in the Gulf of Guinea, and have attracted niche interest from private investors who see tourism or hotel potential in these history-laden structures. (Photo by Daniel BELOUMOU OLOMO / AFP via Getty Images)

A general view of the pool area at Belo Monte hotel near Santo Antonio, in Principe Island in Sao Tome and Principe, on August 5, 2026. The Belo Monte Hotel is situated on the site of the former Roca Belo Monte. Once a subsidiary of Bela Vista, this 'roca-terreiro' is laid out around a central courtyard and is built entirely from laterite blocks. It fell into disuse and disrepair following the country's independence in 1975. At present, the whole country of Sao Tome and Principe has been designated a biosphere reserve by UNESCO and the country enjoys special protection from the organisation due to its unique natural environment. (Photo by Daniel BELOUMOU OLOMO / AFP via Getty Images)

Egbert Bloemsma, general manager of HBD's hotels, poses for a photograph at Sundy Praia, near Santo Antonio in Principe Island in Sao Tome and Principe, on August 4, 2026. The HBD Group comprises five hotels, all located the island of Principe. The old Sundy manor house has already been converted into a five-star hotel, and once the renovation work is complete, the former workers' quarters will become additional rooms. At present, the whole country of Sao Tome and Principe has been designated a biosphere reserve by UNESCO and the country enjoys special protection from the organisation due to its unique natural environment. (Photo by Daniel BELOUMOU OLOMO / AFP via Getty Images)

A general view of the Belo Monte hotel near Santo Antonio, in Principe Island in Sao Tome and Principe, on August 5, 2026. The Belo Monte Hotel is situated on the site of the former Roca Belo Monte. Once a subsidiary of Bela Vista, this 'roca-terreiro' is laid out around a central courtyard and is built entirely from laterite blocks. It fell into disuse and disrepair following the country's independence in 1975. At present, the whole country of Sao Tome and Principe has been designated a biosphere reserve by UNESCO and the country enjoys special protection from the organisation due to its unique natural environment. (Photo by Daniel BELOUMOU OLOMO / AFP via Getty Images)

Egbert Bloemsma, general manager of HBD's hotels, poses for a photograph at Sundy Praia, near Santo Antonio in Principe Island in Sao Tome and Principe, on August 4, 2026. The HBD Group comprises five hotels, all located the island of Principe. The old Sundy manor house has already been converted into a five-star hotel, and once the renovation work is complete, the former workers' quarters will become additional rooms. At present, the whole country of Sao Tome and Principe has been designated a biosphere reserve by UNESCO and the country enjoys special protection from the organisation due to its unique natural environment. (Photo by Daniel BELOUMOU OLOMO / AFP via Getty Images)

A general view of the Belo Monte hotel near Santo Antonio, in Principe Island in Sao Tome and Principe, on August 5, 2026. The Belo Monte Hotel is situated on the site of the former Roca Belo Monte. Once a subsidiary of Bela Vista, this 'roca-terreiro' is laid out around a central courtyard and is built entirely from laterite blocks. It fell into disuse and disrepair following the country's independence in 1975. At present, the whole country of Sao Tome and Principe has been designated a biosphere reserve by UNESCO and the country enjoys special protection from the organisation due to its unique natural environment. (Photo by Daniel BELOUMOU OLOMO / AFP via Getty Images)

People walk at the Belo Monte hotel near Santo Antonio, in Principe Island in Sao Tome and Principe, on August 5, 2026. The Belo Monte Hotel is situated on the site of the former Roca Belo Monte. Once a subsidiary of Bela Vista, this 'roca-terreiro' is laid out around a central courtyard and is built entirely from laterite blocks. It fell into disuse and disrepair following the country's independence in 1975. At present, the whole country of Sao Tome and Principe has been designated a biosphere reserve by UNESCO and the country enjoys special protection from the organisation due to its unique natural environment. (Photo by Daniel BELOUMOU OLOMO / AFP via Getty Images)

A general view of the Sanzalas, the barracks or residential quarters built to house the forced laborers and workers at the Roca Sundy, near Santo Antonio, in Principe Island in Sao Tome and Principe, on August 5, 2026. Sundy is one of six "roças" that were added to the UNESCO World Heritage List at the end of July, in recognition of their architecture and their fundamental importance in the country's history. But most of the "roças" in São Tomé and Príncipe have been abandoned. They pose a major preservation challenge for this small island state in Central Africa, located in the Gulf of Guinea, and have attracted niche interest from private investors who see tourism or hotel potential in these history-laden structures. (Photo by Daniel BELOUMOU OLOMO / AFP via Getty Images)