Reigning world champion Sebastian Vettel says that the 'immense' Monaco Grand Prix provides a huge challenge for Formula 1 drivers.
The sport returns to one of its most famous circuits next weekend and Vettel says that it is one track where drivers cannot make a single error.
Vettel crashed out of the race in 2009 but has since enjoyed a strong record at the track as he finished as the runner-up in 2010 and 2013, and won the event in 2011.
"Monaco is one of my favourite tracks, it's an absolute challenge," he said.
"You cannot afford to make one single mistake, because you would easily crash into the railings. Overtaking is only possible with taking an extreme risk. The best place to overtake is before the harbour chicane when we exit the narrow tunnel at 300kph and race towards the first gear chicane."
Vettel is also hoping for strong reliability from his Red Bull RB10 in the Principality.
"Other than that, it’s all about patience in Monaco and hoping for complete reliability as the suspension and drive are massively in demand around this extreme, uneven roller-coaster of a circuit – it’s immense. In the perfect situation, you would have had a good qualifying [result] and start from the front."