Sandy beaches represent 39% of French coasts. They are submitted to erosion, notably because of the energetic wave conditions observed during extreme events (storms). On the contrary, when moderate wave conditions are observed, the sand tends to be brought back on the beach. Processes controlling erosion are quite well known thanks to numerous studies on the topic. As a consequence, erosion events are quite well predicted by models (VAN RIJN et al., 2011). It is not the case when it comes to accretion; indeed, sand quantities transported onshore tend to be underestimated in predictive models (DALY et al., 2017). In order to improve models, parameters controlling accretion need to be clarified. Onshore transport occurs mainly through bedload in the bottom boundary layer. One challenge still to overcome in coastal dynamic studies is to obtain in situ measurements allowing to observe the whole water column with enough resolution. The new mooring built in the frame of ANR WEST is versatile, easy to deploy in all kinds of areas, solid and allows to insonify the whole water column so as to obtain co-localized current, concentration and granulometry measurements. Thanks to the instrument positions, no acoustic interference is observed. Hydrodynamic parameters can be computed and agree with previous studies. The newly presented mooring is therefore well adapted to surf zone data collection.