Mountain biking or BTT (bicicleta todo terreno) as it is known in Spain, is a thriving activity, and fans have the Pyrenees mountain range, numerous national parks and beautiful coastal routes to explore. Popular cycling spots near Barcelona include El Montseny, Collserola and Ribera d’Ebre. Most adventure companies that organise rafting, climbing and other activities also offer mountain biking excursions, ranging from half-day taster tours to four-day breaks. Catalonia Adventures (www.cataloniaadventures.com) are a highly recommendable adventure company that organise trips for groups of four people and above, for all abilities. If, however, you are a serious mountain biker looking to join a club, then www.solobtt.com is an extremely useful website, with information on national competitions, regular excursions (marchas), courses, clubs and mountain biking federations. Amigos del Ciclismo (www.amigosdelciclismo.com) provides route maps with explanations of levels of difficulty, and www.cicloide.com offers a general overview of 541 mountain trails in Catalonia.