Sozopol Events:

1. Sozopol Apollonia Festival - A renowned arts and culture festival featuring music performances, theater shows, art exhibitions, and literary events. Date: September.

2. Sozopol Film Festival - An annual film festival showcasing Bulgarian and international films. Date: June-July.

3. Sozopol Old Town Festival - A celebration of the rich history and traditions of Sozopol, featuring live music, folk dances, crafts, and local cuisine. Date: July.

Sveti Vlas Events:

1. Sveti Vlas Marina Festival - A lively festival held at the Sveti Vlas Marina, featuring live music, entertainment, and various water sports activities. Date: July-August.

2. International Jazz Festival Sveti Vlas - A popular jazz festival attracting renowned local and international jazz artists. Date: August.

3. Bulgarian Folklore Evenings - Enjoy authentic Bulgarian folk music, dances, and traditional cuisine in the charming setting of Sveti Vlas. Date: Throughout the summer season.

Nessebar Events:

1. Nessebar International Folklore Festival - A vibrant celebration of folklore and traditional music and dance from Bulgaria and around the world. Date: August.

2. Nessebar Art Festival - An art-centric event showcasing local and international artists through exhibitions, workshops, and performances. Date: July.

3. Nessebar Day - A festive celebration of the town's history and cultural heritage, featuring parades, concerts, and fireworks. Date: September.

Please note that event dates and details may vary from year to year, so it's advisable to check with local authorities or event organizers for the most up-to-date information.