The nearby cliffs rise to 60 m to 70 m above mean sea level .
The nearby cliffs are formed from a bedrock of prismatic granite ; over the geological timescales having been eroded , shaped and divided vertically and horizontally sometimes almost into rounded cubic blocks .
The nearby cliffs rise to 60 m to 70 m above mean sea level and are formed from a bedrock of prismatic granite ; over the geological timescales having been eroded , shaped and divided vertically and horizontally sometimes almost into rounded cubic blocks .