Are there paved bike paths around the lake? Do the mountain bike trails have of many hills to climb or is it mostly flat? Are trails ok for younger kids?

There are mountain bike trails near the dam. Flatter easier trails are on the west side and are shared with hikers and horseback riders. You can find park maps at the kiosks around the park that show the the trails and their use.

not necessarily for bikes

some parts are paved and others are not, there are many ups and downs and at the top there is a pool but it is not yet open to the public, ideal for walking, jogging or cycling.