[5] Approximately 575 hectares of Berambang Island consist of mangrove soils, which are grey, clayey, and poorly drained, with potential acid sulfate layers beneath.

Brooke's occupation of Berambang Island (Buang Tawer) and acquisition of Kota Batu land, stretching along the Brunei River from the consular boundary to Pelambayan and Serdang, raised concerns.

[9] Brooke's coal mining operations on the island led to the discovery of crude oil in 1902,[10] at the foot of the hills near Buang Tawar, with production reaching 5,433 gallons in 1911.

[11] A blockhouse built during the coal mining era was later dismantled, and its materials were repurposed to build offices, a police station, and barracks in Muara, as noted in a 1915 annual report.

These mangroves provide essential habitats for proboscis monkeys and play a vital role in maintaining the ecological balance of the Brunei River system, supporting mainland urban development.

Its Seri Tanjung Homestay Tourism Centre offers six affordable "Inap Desa" accommodations, allowing visitors to experience water village life, cultural performances, and traditional seafood production.

[20] During the COVID-19 pandemic, the initiative shifted its focus to domestic tourism, empowering residents by promoting local culture and traditions, and fostering economic sustainability through services managed by the village consultative council of Sungai Bunga.

When it came Awang Semaun's turn to spin his gasing, it collided with his nephew's and took off from Temburong toward the Brunei River, where it bounced off the seas like a skipping stone and landed upside-down on the shores of Berambang Island, where it spun until it transformed into a large rock.