Sustainability events in Königswinter

European Sustainability Week 2026

Nov 23, 2026

9:00 AM – 8:00 PM (GMT+1)

Steigenberger Grand Hotel Petersberg, Königswinter

European Sustainability Week 2026

Nov 24, 2026

9:00 AM – 8:00 PM (GMT+1)

Steigenberger Grand Hotel Petersberg, Königswinter

European Sustainability Week 2026

Nov 25, 2026

9:00 AM – 8:00 PM (GMT+1)

Steigenberger Grand Hotel Petersberg, Königswinter