The knowledge of the longshore sediment transport rate is very important to undertake engineering works to protect coastlines from erosion and to ensure the maintenance of harbors and navigation channels. This study, first of its kind in the Gulf of Guinea, aiming at quantifying the longshore sand transport in the surf zone along Denu beach, using an in-situ approach, will be performed through several days of intensive data collection. These data include the sand transport rates (measured with streamer traps), the wave parameters (wave height, period and angle), the longshore current strength and direction, the beach profile, etc. The measured sand transport rates will then be compared with estimates computed from already existing mathematical models. These models include equations proposed by CERC (1984), Kamphuis (1991) and Van Rijn (2014). The current study would contribute to the field of coastal engineering works in Ghana since it will provide an accurate estimate of the quantities of sediment materials which could move along a specific coast of the country. It also constitutes one of the low-cost studies that companies involved in coastal engineering works in Ghana could perform to understand the dynamic of a particular coast, design and construct the most adequate coastal protection structure for the coast.