The bridge's construction was essential for the commercial development of Illa da Toxa, which was originally a private agricultural island before the discovery of thermal waters.
The mudflats surrounding the bridge are part of the O Grove and Arousa estuary system, which is a protected habitat for migratory birds.
The structure provides a vantage point to observe 'bateas,' the floating wooden platforms used for cultivating mussels, which are iconic to the Galician coast.
The bridge sits over waters historically prized for their high concentration of minerals, leading to the island's long-standing reputation for wellness tourism.
Ponte da Toxa is a stone bridge connecting the O Grove peninsula to the island of Illa da Toxa in the Pontevedra province of Galicia, Spain. Completed in 1948, the bridge replaced a previous wooden structure that facilitated access to the island's medicinal mineral springs. It spans the Arousa estuary, characterized by extensive intertidal mudflats and shellfish farming plots. The structure serves as the primary land connection for visitors traveling to the island's resort hotels, golf course, and iconic chapel. Its design reflects mid-20th-century coastal civil engineering, providing clear views of the local fishing industry and tidal landscape. The bridge is part of a wider tourist zone known for its thermal spa heritage dating back to the late 19th century.
From the center of the bridge looking toward the mussel rafts (bateas) with the island's pine tree silhouette in the background.
Walk the bridge at low tide to observe local shellfish harvesters working in the mudflats below.
Combine your visit with a walk around the perimeter of Illa da Toxa to see the chapel covered in scallop shells.
Traffic can be heavy during summer weekends, so pedestrian crossing is often more pleasant than driving.
Do not attempt to walk on the intertidal mudflats themselves, as the deep silt can be hazardous.
