The Pian Grande, which extends for about 7 km with an average width of 3 km and an altitude ranging from 1300 to 1252 m, is the second-largest karstic plateau in Italy, after the Piana del Fucino, and is entirely surrounded by the ridges of the Sibillini Mountains.

What makes the Plains famous is the Flowering which, starting in May and continuing into June and July, colours the whole area with poppies, cornflowers, daisies and lentils (the lentil is one of the most appreciated gastronomic excellences in the area).

The plateau takes on splashes of colour from the spontaneous flowering: the whole area of the Mergani and beyond is filled with many kinds of wildflowers. Nature is the artist here, every year renewing the existing species.

Then the flowering of the cultivated fields or of the hills begins according to the sowing period: the plants that live in symbiosis with the lentil develop with their own distinct times and change continuously their colours.

The Pian Perduto as well as part of the high and low hills are also sown every year: just continue past the village of Castelluccio in the direction of Visso and you will enter another world of incredible colours. Given the many paths that wind through this area you can really enjoy the beauty of this incredible natural show, a perfect setting for a walk, a picnic or a photo shoot.

Castelluccio and its plateau are the perfect shelter for mountain lovers: in addition to air sports, from hang-gliding to paragliding, you can enjoy many outdoor activities, both for experts and beginners, such as trekking, Nordic walking, biking and horseback riding.