Aphuhura (Aphouhoura) or Gezaleko erreka / Guéçalia, from Aussurucq (L) Arangorena, from Ordiarp (L) Abarrakia, from Musculdy (R) Aphaura, from Arrast-Larrebieu...

gathering some tributaries to join the Apouhoura north of the commune. The Arangorena forms the north-western border as it flows north-east to join the Saison...