Looking for some muni trails near Waltham, MA

I’m going to be in Waltham, MA during the day on Thursday, Dec 6th and am looking for some fun singletrack. I’ll be driving in from Western Mass along 90, so I’d also be happy with anything along the way.

Please post recommendations if you’ve got em. Thanks!!!

Here is a place that’s pretty good. It’s in Needham, which isn’t too far from Waltham. I’ve ridden there once before. It’s not overly tough but has some sections with a little challenge. It’s also easy to get to.