The sea shell museum is just on the way to Nagoa Beach close to the Airport. Few have heard about this seashell museum, but it is a museum with a difference. The collection displayed at the museum are very beautiful and rare. You will not find such collection anywhere else in India. As an hobby of shell collection the owner has transformed into a museum.

The Church was built in the year 1598 by an order of Bishop D. Aleixo Menezes. It was the first Parish Church of Diu. Later on the status of the Parish Church was transferred to the Church of Immaculate Conception. As this church of St. Thomas ceased to be the Parish Church it was also desecrated and it was used for various profane purposes. The Altar is said to have been transferred to Silvassa.

This edifice came under various functions – as an Orphanage, Home for the Aged, Museum, Police Station and prior to liberation it housed the Angolan Battalion. Post liberation, it was abandoned and it was in custody of the Parish Priest of the Immaculate Conception. At present, it houses a Museum inaugurated on 12th October, 1992. Carved woods, old statues, stone inscriptions and other artifacts are collected from various sites and displayed in the Museum. It is an archaeological treasure house.