There are ~19 trails in Red Rock Canyon ... and they range from easy peezy (0.4 miles) to difficult (10+ miles). All the trails are connected to one another along the 13 miles of scenic drive. The drive is a loop, so if you get lost, then you must've really done something wrong.
Much of the hiking consists of scrambling amongst some very tiny rocks, so bring pants
and sturdy shoes. Some areas actually have waterfalls (small, puny ones). Valleys are very picturesque ... and you might even spot interesting wildlife (tortoise!)
If you've done 3, you've done a good number as they start to look a like.
We started out at Calico tanks (scramble scramble), then to a few overlooks, a waterfall area. Each area has its own parking lot and bathroom -- which are nicely kept.
To enter -- pay $7 at the entrance ... it's for all day and really worth it.
They even have a visitor's center that has really nifty information and guides to help you on your way.
Don't forget to bring water and sunblock! Don't want you dying out there.