The Botanical Garden Hamma (Jardin d'Essai du Hamma) in Algiers is a sprawling and historic green oasis easily accessible by metro, tram, or taxi, with most main paths offering good accessibility, though some areas may be less so for wheelchairs. It's ideal for both solo exploration and family outings, allowing visitors to wander at their own pace; while a guide isn't strictly necessary, one can provide deeper historical and botanical insights. Open year-round, the garden is best enjoyed during spring (March-May) or autumn (September-November) to avoid the peak summer heat and appreciate the lush foliage. The approximate cost is very low, typically involving a small entrance fee. Visitors usually spend 2 to 4 hours exploring its diverse plant collections, tree-lined avenues, and the adjacent zoo, making it a peaceful and enriching escape within the bustling city.