The parish of Odeceixe is situated on the steeply inclined topography that divides the Algarve and Alentejo regions; the south bank of the Ribeira de Seixe which runs through this parish is the dividing line for this frontier.
The parish includes Praia do Odeceixe, 4 km west of the village of Odeceixe, at the mouth of the Ribeira de Seixe. This has one of the few official naturist beaches in Portugal.