Hours: Any time, but please respect the residents and be quiet at night
Reservations: Not required
Location: A few blocks uphill from Ghirardelli Square, directions below
How Long: Allow a half hour at most to watch the people and take a few photos, longer if you want to drive down on a busy day
Best Time to Visit: The flowers are nicest in spring and summer, and morning is the best time for photographsThe "crooked" section of Lombard is between Hyde and Leavenworth, just a few blocks above Ghirardelli Square.
The Powell-Hyde cable car stops at the top of Lombard Street. You can also get there by walking up Hyde (very steep) from Ghirardelli Square, up Leavenworth (one block east, less steep) or by walking west from North Beach on Lombard Street, but the best way to get here depends on where you're coming from. Check out all the other options.
If you plan on driving, approach from Hyde Street. Lombard Street is one-way, and you can't drive up from Leavenworth.