Located just offshore from Cua Lo, Hon Ngu consists of two islands rising from the sea, with the larger reaching approximately 133 metres above sea level and the smaller around 88 metres. Together, they cover about 2.5 km² and create a distinctive coastal silhouette. The landscape features rocky slopes, natural vegetation and stretches of shoreline, offering a contrast to the long sandy beaches of the mainland.

One of the island’s most significant landmarks is Song Ngu Pagoda, a traditional Buddhist temple believed to date to around the 14th century. Restored on its original site in 2005, the pagoda retains traditional architectural features and remains a place of spiritual importance for coastal communities. Nearby, Ngoc Well is known for its fresh water, while two ancient banyan trees are notable features of the temple grounds. Together, these landmarks connect the island’s natural setting with the religious traditions of the Cua Lo region.

Hon Ngu is also associated with the maritime culture of Nghe An. Its waters and rocky shores form part of the wider coastal environment supporting local fishing and marine activities, while boat journeys between the island and mainland offer views across the open sea. The combination of quiet beaches, natural scenery and historic religious sites makes Hon Ngu a distinctive complement to Cua Lo’s seaside attractions.