The overwhelming popularity of Tenerife among European travelers is due to a number of factors. Geographically, it is situated roughly at the center of the archipelago, facilitating ferry travel to each of the surrounding islands. Though it is the largest in total area - around 100 km long and 40 km across at its widest point (62 x 24 miles) - touring the whole of Tenerife, at least by way of the well-maintained autovías along its perimeter, can be managed in a matter of hours. This, mated to an efficient public bus system, countless low-cost car rental agencies and innumerable resort complexe.