THE small town of Simanggang in Sarawak has a notable claim to fame: the tidal bore that rushes up the Batang Lupar river with waves as high as 3m. A tidal bore occurs when the leading edge of an ...

Called the “pororoca,” this nearly endless wave is an example of a tidal bore. The strongest tidal bores occur on the biannual equinoxes in September and March when the sun, moon and earth ...

READ MORE: Severn bore 2024: The village beside the River Severn perfect for a spectacular glimpse of world famous tidal wave ...