What should I do if I come across a processionary caterpillar while hiking in the Serra de Tramuntana?

The faint scent of pine and earth mingles with the warm island breeze as you walk through the shaded paths of the Serra de Tramuntana. Among the pine trees here, processionary caterpillars can sometimes be seen, especially in early spring. These furry larvae travel in long lines, and their tiny hairs release toxins that may cause skin irritation, allergic reactions, or respiratory problems if touched or inhaled. If you accidentally brush against one, calmly but promptly wash the affected area with soap and water, preferably using fresh water from a nearby fountain or your own supply.

Avoid scratching the irritated skin to reduce the risk of infection. If redness, swelling, itching, or breathing difficulties develop, it's essential to seek medical care promptly. Local health centers in towns such as Sóller or Pollença are familiar with these cases. When exploring natural sites like the Puig de Maria trail or the pine groves near Formentor, keep a respectful distance from these caterpillars and warn fellow hikers, particularly if you’re traveling with children or pets. Informational signs about processionary caterpillars are often posted in regional parks and along popular walking routes on the north coast. Staying aware and cautious enhances your chances of having a safe and memorable experience around the island’s stunning natural landscapes.