It is possible to sight some snakes, usually harmless ones, such as the green whip snake, the Aesculapian snake, the slow worm, and also lizards, green lizards and geckoes on the dry-stone walls. The viper is very rare.

Yes, there are venomous snakes in the Cinque Terre region of Italy, but they are extremely shy and encounters are rare. The primary species of concern for hikers on the "Sentiero Azzurro" (Blue Trail) is the Asp Viper (Vipera aspis). This snake is widespread across Liguria and prefers rocky hills, dry stone walls, and open forests. While its venom is potent and requires medical attention, the Asp Viper is not aggressive and will only strike if it feels cornered or is stepped on. In 2026, local park authorities recommend that hikers stay on the marked paths, wear sturdy "closed-toe" shoes, and avoid reaching into rock crevices or tall grass without looking. Other snakes in the area, like the Green Whip Snake, are completely harmless to humans but can be quite active and "vocal" if disturbed. For the average traveler, the "danger" is minimal; as long as you respect the local wildlife and watch where you step during your coastal trek between the five villages, you can enjoy the stunning Mediterranean views without any fear of the local reptilian population.