This small peninsula has an important thermal heritage. The island Illa da Toxa, a heavenly setting with medicinal waters, is just across the bridge. According to the legend, the priest of the San Martiño Church abandoned his donkey in the uninhabited island, because the animal suffered from a skin disease and he was not able to slaughter it. After a while, the priest went to the island to bury the donkey but he found it alive and cured, immersed in warm mud pouring out of the ground.
The first thermal facilities of the island were built in 1842. They were huts where spring waters were used in a rudimentary way. In 1903, the association Sociedad Anónima de La Toja was founded and it started the construction of the Gran Hotel, designed by the architect Daniel Vázquez-Gulías, which was inaugurated in 1907. In the 1920s, Illa da Toxa was already one of the best thermal destinations in Europe, having the Gran Hotel, a spa, a soap factory, villas for rent where the aristocracy of the time used to stay, three hotels and a second-class spa for less wealthy people. At that time, it already had many leisure attractions: a casino, a firing range and several places for sport activities. Today, there are two spas and a spa-hotel with talasotherapy services.