Dwejra is perhaps the archipelago's most spectacular natural landmark. Here, geology, time and sea have worked together to produce some of the most remarkable scenery on the Islands - The Azure Window, the Inland Sea, Fungus Rock, sheer cliffs and a rocky coastline yielding fossilised remains of sea creatures dating from the Miocene period. Apart from the topography visible above sea and ground, there are also some fascinating underwater caves which provide excellent dive sites. The Azure Window, a table-like rock over the sea, is one of the most photographed vistas of the Islands, and it particularly spectacular during winter when waves crash high inside the arch. The Inland Sea, and Dwejra Bay itself, were created millions of years ago when two limestone caves collapsed. The shallow inland lagoon is linked to the sea via a 50-metre cave. The `Sea' is used by fishermen, swimmers and as access point for divers. Overlooking the lagoon is the Chapel of St Anne, built in 1963 on the site of a much older church. The other natural landmark here is the legendary Fungus Rock.