<p>From Harvard Square, Middlesex Fells is about 20 minutes by car, maybe 45 minutes by bike, and possible but tough by public transit (count on at least an hour, with multiple transfers – your best bet is probably Red Line to Orange Line to the 99 bus).</p>
<p>I haven’t been to Middlesex Fells in a few years (and what I remember most about the last time I was hiking there is that one of my sons got stung by a wasp), but it’s a good place to hike and there is some hilly terrain. You can get some info about the trails at [url=<a href=“http://www.fells.org/Visit-Trails.html]Visit:Trails[/url”>http://www.fells.org/Visit-Trails.html]Visit:Trails[/url</a>].</p>