Flying is the quickest (and of course most expensive) way of getting to places like Angkor and Ratanakiri. Road travel is safer than it's been for years, and most of the main roads are now in pretty good shape thanks to international assistance. Train travel is just about possible if you negotiate a space on a cargo service - but the journey will take much longer than by bus. With some 1900km (1180mi) of navigable waterways to utilise, boats play a major role in getting around. The most popular services operate between the capital and Siem Reap - the express service cuts the journey time down to a mere five hours. An effective local bus network makes travel to sights around Phnom Penh much easier than driving, particularly as cars can only be hired with a driver - and when you look at some of the country's highways from hell, perhaps that's all for the best. Taxis are more common in the cities these days, and cyclos and motos (small motorcycles) can be flagged down for short hops.