Is there anything east of town...towards Zeandale?
Someone mentioned to me that there might be some out by pillsbury crossing, but I don't know that area very well so I'm not sure where to start.
I can think of more but they are all more than 5 mins away unless you want to get real adventurous and climb manhattan and ks hill.
Ya, I forgot to mention those two. I like to use the Manhattan Hill trail on occasion which would actually be nice if it took more than a few minutes. Maybe there's some alternate paths I should explore around there. I don't think I've ever gone up KS hill.
I've found some pretty interesting areas around town geocaching, but that really takes the nerd factor to another level.