Explore an exciting 4.0-mile loop hike at Middlesex Fells. The trail climbs several rocky outcroppings leading to amazing views of the Boston city skyline from Boojum Rock as well as the rooftops of Melrose from Black Rock! Below treeline, enjoy exploring wildflowers, and ferns and crossing rivers and streams beneath rich tree canopies. We consider this a moderatedifficulty hike for people with hiking experience and a more challenging hike for beginners because of the 500’ of elevation we will gain to climb to our viewpoints. The meeting point is the Flynn Hockey Rink, the average hike time should be around 2.5 hours (35-40 min mile pace).