To explore the sedimentation process in the Terengganu coastal water, 30 cm sediment cores was studied by measuring the stable element lead (Pb). Applying the 210Pbexcess method, average sedimentation rates of 0.21 cmyr-1 was obtained.  The estimated sedimentation rates obtained was comparable to other related studies in South China Sea and other coastal areas elsewhere.  Assuming that the sedimentation rate values are accurate, this implies that the sediments in the upper 30 cm were deposited during the last 143 years ago.