There are many fine multi-use trails. Their website lists them. A visit is well worth the entry fee, but be sure to come early, as later crowds can be quite dense.
Yes, there's one that is on the right side by the train that'll lead you to other trails. There's another on the left side of the entrance also left side of Petting Zoo. There are signs on posts that will tell you which trail. Both lead to many other trails.
I used the Horse Trail for mountain biking.
Yes, there are many! I dont know exactly where they are because I've never taken them, but I'm sure it's nothing Google cant solve.
There are many trails.
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