The lower part of  the Takamaka Canyon.  Unfortunately the River Marsouins has three dams on it.  I think the one you see here is the second with Bras Patience coming in on the right.  Below the dam is a nice canyon, Takamaka3.  It is another awesome one, though probably not as spectacular as Takamaka1 (described in my June report on canyoning in Reunion).  It may one day soon be closed by the hydroelectric commission because of water releases into the narrows below.