Wales' latest purpose-built mountain biking centre will open in Blaenau Ffestiniog later.
The centre has received European funding, which will provide a major boost for tourism in the area.
It will also be a chance to preview this weekend's British Downhill Series, a major event in the mountain biking world.
Antur Stiniog, in a transformed slate quarry at Blaenau Ffestiniog, is the only purpose-built mountain biking centre in Wales with a full uplift service.
The official opening of Antur Stiniog will be followed by the chance for riders to try out other runs at the course, which is part of the Llechwedd Slate Caverns complex.
A new state-of-the-art mountain biking skills area at Coed y Brenin Forest Park will be officially opened today by John Griffiths AM, the Minister for Culture and Sport.
It's hoped the £1.7 million development near Dolgellau will become one of the premier mountain bike destinations in the world, attracting thousands of visitors to ride the trails every year, bringing an important boost to the local economy.