There are three well marked, mountain-biking trails. The 7-km and 12-km routes are rated moderate. And the 19-km route is rated more challenging. The trails however are not very technical, mostly double track. They do get muddy and there are several spots where you will have to carry your bike especially if it has been rainy. The trails are scenic and and the longer trail will take a few hours with modest pace. I recommend the 19km trail followed by a dip into the calm waters of Silent Lake.