The pictures below were taken while I was kayaking along the western coast of Saint Lucia. The rock formation below is conglomerate and on top of it seems to be a volcanoclastic sedimentary unit.
These pictures nicely demonstrate the two dominant natural forces shaping this island – Earth’s internal heat expressed as volcanic eruptions and slower but no less powerful sunshine-driven processes which disintegrate and wear down rocks to form conglomerate among other sedimentary rocks.