the north side of the lake has lots of cobblestones which is sometimes tricky. there are chutes here if you're into that. at one point the trail splits on a hillside where you can take the bottom (flowing and twisty), middle (off camber, narrow trail, twisty), or top which i haven't done yet, but it has a fun downhill at the end. the south side of the lake is easy, winding in and around the paved bike path. smoother trails there, but twisty.