PERILOUS FORD

This seems to lie between Queen Igraine's Canguin and Guiromelant's Orquenseles, with an additional stretch of land on Igraine's side.

The Haughty Maid of Logres maliciously dares Gawaine to jump his horse across the Perilous Ford, saying that her dear friend the Haughty Knight of the Rock (whom Gawaine has just defeated) has been in the habit of crossing it every day for her sake. When, thanks to Gringolet, Gawaine makes it ot the other side, Guiromelant informs him that he is the first knight ever to keep his life while crossing this ford.