oceanic beaches in rio de janeiro are characterized by sandy sea beds, rich in marine life, and subject to constantly changing conditions changes created by currents and winds.

sandy beaches constitute one of the most dynamic environments along rio's coast - being made mostly up of non-cohesive elements, they constantly change in shape and extension depending on winds and tides.

the majority of the beaches in rio de janeiro are classified as 'tumble' or 'reflective' - meaning they are at a slope, have soft white sand, water depth increases sharply, and the waves break very close to shore.