The Basilica of Our Lady of Good Health, also known as Sanctuary of Our Lady of Velankanni, is a Christian shrine located at the town of Velankanni, Tamil Nadu, India. The shrine is dedicated to the Blessed Virgin Mary.
The devotion has existed since the mid-sixteenth century, it is attributed to three separate events which occurred at the site: The apparition of the Madonna and Child to a slumbering shepherd boy, the miraculous healing of a handicapped buttermilk vendor and the rescue of Portuguese sailors from a deadly sea storm.
Initially, a modest chapel was built by the Portuguese from Goa and Bombay, soon after they washed ashore safely in spite of a severe tempest. An annual novena is celebrated and draws nearly 5 million pilgrims each year.
Wikipedia https://en.wikipedia.org/wiki/Basilica_of_Our_Lady_of_Good_Health
Address India
Coordinates 10°40'48.998" N 79°50'58.178" E