Cement Factory (Kertasari)

Cement Factory (Kertasari) is an uncrowded, rarely-breaking reef setup associated with the large cement plant headland area at the western end of Lhoknga Beach. When conditions align, it delivers heavy, hollow, powerful barreling waves over very shallow reef/coral ledges, described as fast and ledgey. Reports emphasize that it is difficult to locate and access, and it typically works only a few days per year. Two directional descriptions are found in the provided materials: the spot is described as a left-hand reef break by one provider, while another description characterizes it as a right-hand reef break. Regardless of direction, the wave is consistently portrayed as highly sensitive to swell/wind and capable of forming intense barrels with fast, steep takeoffs. Power and hazards are central to the spot’s profile. It starts working around roughly 1.0–1.5 m (3–5 ft) and can hold up to around 2.5 m+ (about 8 ft+) on the best days. However, the reef/coral is extremely sharp and the wave can feature draining barrel sections and a steep drop, making it dangerous even when it looks promising. Booties are strongly recommended if you’re unfamiliar with the reef. Plan around safety and remoteness: experienced surfers only, no formal rescue is reported, and medical access is distant. Additional caution is advised for tide timing, as locals avoid it on sketchy tides for good reason. When it does break, ride lengths are described as short to normal (roughly 50 to 150 m) with the possibility of longer rides (up to about 150 to 300 m) on good days.