Most islands have a dip in the middle to very near high tide level.  In a few places - here in western Peros Banhos, separate islands develop between these islands across the width of the reef flat, here Ile Gabrielle and Ile Monpatre.  Another example occurs at Ile Diamant further north in this chain of islands.  This is taken at high tide - at low tide a narrow channel only a few cm deep remains.  This site is home to a small (less than 1 square metre) patch of seagrass that has persisted at least between 1978 and 1996; the species has not been found elsewhere in this atoll.

