The Penafrou Watchtower was a former medieval watchtower to provide warning of incoming maritime invaders. From here you can see the mouth of the ria and the Basa inlet.
The Basa inlet is an estuary of the Camariñas ria. It is V-shaped and shellfish-rich. At low tide, across the river, you can see the shellfish gatherers at work.
Some of the shellfish collected in this area, just as in O Ariño, are cockles and Manila, carpetshell and grooved carpetshells clams, all of which can be enjoyed in Camariñas' restaurants.
Pod razors and razor shells are picked without the aid of any breathing equipment from other shellfishing areas such as the Lago beach by the Association of Shellfish Gatherers of the Camariñas Seafarers' Guild.