Explore hiking trails around Hydra ⵃⵉⴷⵔⴰ حيدرة, Alger. The best hike near Hydra ⵃⵉⴷⵔⴰ حيدرة is Embassy of the Kingdom of the Netherlands Loop via Avenue Khalef Mustapha, a 2.5 mile loop in . Hydra ⵃⵉⴷⵔⴰ حيدرة has population 31133.0.