Grab your bags, walk out of Tamuin, San Luis Potosi Airport (TSL-Tamuin National), and collect your rental car. Which one you slide into depends on where you want to go. If you’ll be mostly driving in downtown Ciudad Valles, around 12 miles from the terminal, opt for something zippy and small. A compact car with nimble handling will be ideal for those busy streets. But with so many things to see, like the gorgeous caves of the surrounding region, you’ll probably be racking up those miles. A bigger vehicle, like an SUV or a full-size car, will make lengthier road trips a pleasure.