First off I will let you know that it is $5 per person, not per vehicle, to enter the park (free for kids 15 and under).  Worth. Every. Penny. Muir Woods is magnificent.  Surrounded by Red Wood trees, the primary trails are paved and fairly level.  The paved path includes 3 bridges that cross the Redwood Creek where Coho Salmon come to spawn.  There are a couple trails that take you off the beaten path and throughout the surrounding terrain.  I’ll have to venture off on to those trails at a later date, as the weather wasn’t playing nice that day.  The rain fortunately wasn’t constant but the neat part was when it was raining you could see it streaming down through the few open areas between trees…yet standing under the Red Woods you felt nothing.  Bone dry.  The forest was cool since the floor doesn’t see much sunlight and that also means the other plant life mostly consists of ferns and lots and lots of moss.  At one point my brother said he half expected to see a dinosaur cross our path.  I had to agree, Muir Woods is a magical National Monument saved for us and future generations by President Theodore Roosevelt.  Thanks Teddy!