The Alewife Linear Park Bike Path is a paved trail that connects the Alewife T-station in Cambridge to the Somerville Community Path and is part of the larger Minuteman Bikeway that extends to Bedford. The bike path offers a variety of views, from urban landscapes to natural wetlands, and passes through several parks and playgrounds. The bike path is also accessible by public transportation, making it easy to explore different sections or return to your starting point. 

The AllTrails website has a description and map of a hike at Alewife Linear Park.