By far the most efficient mode of public transportation, the metro is clean, reliable, and cheap. Tickets cost from 60p to £e1, with no multiday passes available to foreigners. Trains run from South Cairo (Helwan) to North Cairo (Heliopolis), with sub-lines to Shubra, Ataba, and Abdin. The long-awaited second, cross-Nile line is finally open; it runs from Giza to Shubra. The metro runs from 5:30 AM to midnight in winter (to 1 AM in summer), with trains arriving every 5 to 10 minutes. The first car in every train is reserved for females. Women are advised to use them, especially during rush-hour travel, to avoid being hassled or groped.