La

Determinador

  vaste

Adxectivo

  cavité

Substantivo

 s'ouvrait  à proximité

  de

Adposición

  l'un

1️⃣

  des

  sommets

Substantivo

  de la

  dune

Substantivo

.

The vast cavity opened near one of the peaks of the dune.

The vast cavity opened near one of the peaks of the dune.