Dingle is a small port town on southwest Ireland’s Dingle Peninsula, known for its rugged scenery, trails and sandy beaches. A statue of long-time harbour resident Fungie the dolphin is by the waterfront.

The Dodecanese, in the southeastern Aegean Sea, is a group of Greek islands known for their medieval castles, Byzantine churches, beaches and ancient archaeological sites.

Dominica is a mountainous Caribbean island nation with natural hot springs and tropical rainforests. Morne Trois Pitons National Park is home to the volcanically heated, steam-covered Boiling Lake.

Dominical is a beach-front town in Bahía Ballena de Osa District in the province of Puntarenas in Costa Rica, approximately 45 km south of Quepos. It is well known for large, year-round waves and is popular among surfers in Costa Rica.

The Dominican Republic is a Caribbean nation that shares the island of Hispaniola with Haiti to the west. It's known for its beaches, resorts and golfing. Its terrain comprises rainforest, savannah, and highlands, including Pico Duarte.

Donegal is a town at the mouth of the River Eske, in northwest Ireland. Originally built in the 15th century, Donegal Castle has later additions from the Jacobean period.

Dordogne is a department in southwest France, set between the Loire Valley and Pyrenees mountains. It’s known for prehistoric cave paintings in the Vézère Valley, like those in Lascaux Cave.

Dorset is a county in southwest England. It’s known for the Jurassic Coast, a long stretch on the English Channel where the cliffs contain many fossils, and rock formations show millions of years of geological history.

Dublin Bay is a C-shaped inlet of the Irish Sea on the east coast of Ireland. The bay is about 10 kilometres wide along its north–south base, and 7 km in length to its apex at the centre of the city of Dublin.

The Eastern Cape is one of the provinces of South Africa. Its capital is Bhisho, but its two largest cities are East London and Port Elizabeth.