Choose your route. This is not as easy as it sounds. As there are only a few proper roads going across this region, you may actually need to use the interstates for certain stretches. It is legal to do this but do not try this in other states! Stretches of the Interstate that you can take include the I-10 and the I-8. Note that if you're cycling from California to Arizona and New Mexico, using Interstates is unavoidable.[4] Some itineraries that might interest you include: