This baptistery is one of the oldest examples of Christian architecture in Europe and houses an interesting collection of stone coffins. Built on a Roman foundation in the early 4th century, the site was reconstructed in the Middle Ages.

For nature lovers, Christmas Island National Park provides fantastic opportunities to observe unique plants and animals in their natural habitats. The park covers about two thirds of the island. As an isolated oceanic island, distant from other land masses, Christmas Island is home to a high proportion of endemic species. Several are endangered. The park protects significant ecosystems including much of the island's uniquely structured rainforests and two wetlands of international importance, the Dales and Hosnie's Springs. In and around the national park you will find a host of native sea and forest birds, unique marine life and land crabs — including tens of millions of red crabs, famous throughout the world for their spectacular annual breeding migration.

The Winter Hiking Trails consists of approximately 70 kilometres of prepared trails. The trails are partly on the cross country trail map, available at the Information Office in St. Anton am Arlberg, Pettneu and Flirsch.