Puig d'en Galileu, Mountain summit in Serra de Tramuntana, Mallorca, Spain.

Puig d'en Galileu is a 1,181-metre summit in the Serra de Tramuntana, the second-highest mountain on Mallorca. It is one of the island's 54 peaks above 1,000 metres and lies on the long-distance route GR-221. Its slopes are limestone, and the route is rated easy (difficulty F).

The mountain served as a transport route for coal in the 18th century, during which circular storage structures were built along its paths. These remains document the practical importance of the peak for trade and daily life in the region.

The name Galileu is a common Mallorcan surname; the peak's name links it to a local family rather than to the architect of the snow caves. The caves, called cases de neu, were cut to store snow packed in winter and sold as ice in summer. Walkers on the GR-221 pass close to these stone openings.

The hike starts at Son Macip or Font Coberta near the Lluc parking area, following the marked GR-221 trail. The paths are well marked throughout, making navigation clear even in the rocky terrain.

Puig d'en Galileu is one of Mallorca's 54 peaks above 1,000 metres, at 1,181 m the island's second-highest summit, and the GR-221 long-distance trail crosses it. Its difficulty rating is F, so the climb is short and non-technical despite the altitude.