Increasing relative sea levels and extreme weather events have driven the adoption of sandy nourishments as a popular nature-based measure for ensuring the safety of urbanized coastal areas. However, despite the many advantages of using sand, its dynamic nature and tendency to disperse pose significant challenges for our predictive understanding of the sand redistribution, especially in coastal settings that are not necessarily wave dominated. This study aimed to capture observations of the coupled morphological change and sediment sorting of the Prins Hendrikzanddijk in the Netherlands, a prime example of a poorly sorted beach nourishment in a mixed-energy environment. We specifically focused on evidence of selective transport and large-scale grain sorting in relation to morphological changes, on timescales from tides to years. A combination of a multi-year monitoring campaign focusing on bed composition and bed level, and an intensive 5-week fieldwork which also involved measuring hydrodynamics, showed a dynamic system and an absence of persistent sorting patterns.