Cluster of thick-walled defensive fortifications and ancillary structures positioned on the coast. The site (MAHS-IDN-ACH-ABS-MRY-S-001) consists of four main well-built rectangular structures. Two of the walled fortifications are intact and in good condition (restored by BPCB), while the other two are ruined foundations. There are a number of supporting features built within or in close proximity to the main defensive fortification, such as wells. Some of the features are surrounded by standing water and a canal.

(MAHS-IDN-ACH-ABS-MRY-S-001-F001) The partial remains of a large stone rhombus-shaped structure with distinct construction components on the walls and on top. The interior of the structure is filled with stone, rubble and sand. The feature is located in a wetland area, and is part of a larger defensive fortification.