Located in the center of the Boston Common, the magic of the Frog Pond is apparent as you stroll up. Open from December to March, depending on how cold the winter is, you can take a spin around the pond—or just watch skaters zoom by. Bring your own skates or rent some at the concession stand. Lessons for all ages are available, and there are cute seal-shaped skating aids for children. Open seven days a week, the weekends and holidays are the busiest. While you wait your turn, there’s a café and free WiFi to keep you occupied.