You can say
It's actually pretty easy -- and it's a great workout, which is a bonus if you're looking to stay in shape.
I read a really great "How to Be a Bike Commuter" guide and now I feel like a pro!
There are plenty of easy things that you can do! Check out the Sierra Club's "How to Get Started" page to get some tips.
And since you love hiking -- Sierra Club Outings is a great place to get started. It has something for everyone.
Stop by your local chapter to find out what you can do in your own backyard.