1. Get a map. The Seoul City government is giving out free maps of bike-friendly routes at district offices, the Seoul Library, tourist information centers and bike rental shops on the Han River. For more, go to kojects.com/2013/03/11/seoul-gives-out-free-bike-maps.
2. Be informed. Check the Han River Riders’ Facebook page before starting out. It offers a pretty accurate idea of what the conditions are on any given day.