The processes of material transport in oceans and their exchange with the land mass are complex and are a concern of interest to many researchers. Seawater and surface sediment samples from Tarapur, Mumbai and Goa from west coast of India were collected and analysed for ²²⁶Ra and ²²⁸Ra. The activity levels of ²²⁶Ra ranged from 19 to 36 Bq/kg while the levels of ²²⁸Ra ranged from 25 to 55 Bq/kg in sediments. While the ²²⁶Ra and ²²⁸Ra activity levels ranged between 1.2–3.7 mBq/L and 3.1–7.1 mBq/L respectively. The activity ratios for the two isotopes were also calculated and were found to range between 0.4 and 2.3. The analyses were carried out using gamma spectrometry.