A "bottom turn" is a fundamental maneuver in surfing that occurs immediately after a surfer drops down the face of a wave. This turn allows the surfer to redirect their board back up the wave, gaining speed and positioning for the next move. It is essential for maintaining momentum and control while riding the wave. Executing a bottom turn involves shifting weight and using the board's edge to carve into the wave. Proper technique is crucial, as it sets up the surfer for subsequent maneuvers, such as cutbacks or airs. Mastering the bottom turn is vital for improving overall surfing performance.