Learn about the Middlesex Canal, the greatest work of its kind in the United States until the Erie Canal. Kayakers can take out above the Billerica Falls Dam at the canal entrance/parking lot at 2 Old Elm St. and walk part of the canal that Henry Thoreau traveled between the Merrimack and Concord Rivers. For children, a Lego® canal playground, a watered model lock and a scavenger hunt. Find the pigeon, squeezable beaver, muskrat and three mice. Free, Middlesex Canal Museum, 71 Faulkner St.

Learn about the Middlesex Canal, the greatest work of its kind in the United States until the Erie Canal. Kayakers can take out above the Billerica Falls Dam at the canal entrance/parking lot at 2 Old Elm St. and walk part of the canal that Henry Thoreau traveled between the Merrimack and Concord Rivers. For children, a Lego® canal playground, a watered model lock and a scavenger hunt. Find the pigeon, squeezable beaver, muskrat and three mice. Free, Middlesex Canal Museum,
71 Faulkner St.

Learn about the Middlesex Canal, the greatest work of its kind in the United States until the Erie Canal. Kayakers can take out above the Billerica Falls Dam at the canal entrance/parking lot at 2 Old Elm St. and walk part of the canal that Henry Thoreau traveled between the Merrimack and Concord Rivers. For children, a Lego® canal playground, a watered model lock and a scavenger hunt. Find the pigeon, squeezable beaver, muskrat and three mice. Free, Middlesex Canal Museum, 71 Faulkner St.