The highest peak of the Serrella mountain range, Malla de Llop, is over 1,300 metres (4,300 ft) high. The remains of the Arabic castle, Penya Castellet, and many trails are found in the area, popular for walking and mountain biking. The area has a rich history with three settlements around the village: Pla de Petracos, Bitla and Pla d'Alt. Travelers can visit Els Arcs' naturally formed arches which are some of the largest natural arches in Europe. The ruins of these settlements are now being rebuilt as modern homes.
The area and mountains are very popular with mountain bikers and walkers alike. Trails are well marked with white and yellow markers.
Five kilometres outside the village in the area known as Pla de Petracos are ancient cave paintings said to have been painted over 5000 years ago. Caves at the archaeological site have a viewing platform, and the paintings are explained on six interpretive panels.
There is also a museum in the village open on weekends
The village has an hotel, Hotel Serrella with restaurant. Several bars, and other restaurants, all quite different and serving traditional or international dishes. The restaurants serve international and traditional dishes.
Three kilometres outside the village is an enormous natural arch, Els Arcs.
Said to be one of the biggest in Europe.
Fiestas
San Vicente Ferrer: Celebrated at Easter time.
Week of Culture: This event will commence 22 July 2024for about a week.[needs update] With lots of activities through the week, music concerts in the square performed by the village band "La Primitiva", traditional dancing with entertainment for young and old.
Santa Ana: 26 July is the day of Santa Ana, patron saint of Castell de Castells. This is a day of great celebration in the village with a candlelit procession through the streets in the evening.
Summer Fiesta: Starts on 12 August, with one week of celebrations with events morning, noon and night. A typical Spanish fiesta is very noisy and tends to go on very late at night, so siestas are important in the afternoon, when it is extremely hot. 2024 sees the return of village fiestas.
Pla de Petracos: Early in 7/8 September the village holds a great fiesta under the old trees in the ancient settlement of Petracos. Trees are lit with fairy lights, then music, food and dancing goes on through the night. On Sunday morning the Saint is carried from the village church to Petracos, about 5;km down the mountain. Mass is then held under the trees. Afterwards families gather for an aperitif before cooking their paella’s in the open air and continuing with the weekend fiesta.