Before recent renovations, the attendant-operated lift service was only open from 7 am to 7 pm on weekdays and Saturdays, and 10 am to 5.30 pm on Sundays, with no service on Christmas Day or Boxing Day. Staff shortages and other problems meant that even during these times the lifts were often unavailable. Since 1999, if the lift was not functioning, anyone unable to use the stairs could take the Docklands Light Railway between Island Gardens DLR station (close to the northern end of the tunnel) and Cutty Sark DLR station, close to the southern end. However, non-folding bicycles are not permitted on the Docklands Light Railway system at peak times.