Kavarna (Bulgarian: Каварна) is a Black Sea coastal town and seaside resort in the Dobruja region of northeastern Bulgaria. It lies 64 km northeast of Varna and 49 km from Dobrich on the international road E87. As of December 2009, the town has a population of 11,397 inhabitants. A little yacht port, a fishing base, a spacious beach and a resort complex exist in the town. The landmark Cape Kaliakra is located a few kilometers to the east, as is the tony beachfront resort of Rusalka. Three 18-hole golf courses with villa communities and marinas are being developed nearby, two of the courses are designed by Gary Player and one by Ian Woosnam.

During the 2000s, the town became famous with the annual Kaliakra Rock Fest featuring famous rock bands from around the world.

With the Bulgarian conquest in the 7th century AD, the name Karvuna replaced the similarly-sounding ancient Greek Krounoi as the then name of the neighboring modern town of Balchik; the names Karvunska Hora and Principality of Karvuna were related to that town, which was also mentioned on 14th-century Italian portolan charts with the Italianized form Carbona.

Ronald James Padavona (July 10, 1942 – May 16, 2010), better known as Ronnie James Dio, was an American rock and heavy metal vocalist and songwriter. He performed with, amongst others, Elf, Rainbow, Black Sabbath, Heaven & Hell, and his own band Dio. Other musical projects include the collective fundraiser Hear 'n Aid. He was widely hailed as one of the most powerful singers in heavy metal, renowned for his consistently powerful voice. He often ranks as one of the greatest rock vocalists of all time in various online polls and lists. He is credited with popularizing the "metal horns" hand gesture in metal culture. Prior to his death, he was collaborating on a project with former Black Sabbath bandmates Tony Iommi, Geezer Butler, and Vinny Appice, under the moniker Heaven & Hell, whose only studio album, The Devil You Know, was released on April 28, 2009. Dio died of stomach cancer on May 16, 2010. One of the last songs he recorded was titled "Metal Will Never Die".

Ronnie James Dio was born Ronald James Padavona in Portsmouth, New Hampshire to Italian parents. They lived in Portsmouth until the family moved to Cortland, New York early in his life.