Guzeldere
Guzeldere waterfall is located 15 minutes away from Duzce city center on the Bickin River. It is 630 meters above sea level and was designated a national park in 2011. Around the waterfall, trekking, camping, cycling, photo safaris, etc can be done. The most beautiful seasons in Guzeldere are spring and autumn, when the foliage changes from green to yellow.