There is a road that runs from Los Llanos de Aridane to the capital city of the island Santa Cruz de La Palma (known by locals as simply "Santa Cruz"). This road is a two-lane highway that includes a pair of two-lane tunnels that go right through the top of the mountain. The older tunnel is shorter () and higher than the newer tunnel (). When traveling from one side of the mountain to the other it is common to enter one side in complete clouds (the east side) and come out to the sunny side (western side). This is due to the clouds not being able to cross the mountains, an effect caused by the counter trade wind.