Pirates, Peaks & the Second-Largest City Park

A pirate's sealed cave, a WPA fire tower, and an Olmsted-designed summit inside one of the country's largest municipal parks

This one gets you out of the streets and into the open. Four stops over 4.5 miles, about 25 minutes of driving. Every stop narrates itself when you get there, at whatever pace you feel like walking.

It is one of two tours in Lynn, each taking a different line through the city. Nothing is booked and nothing expires, so you can start it on a whim and finish it whenever you like.