Regent's Canal is an 8.6-mile waterway in London that connects the Grand Union Canal to the River Thames. Built in the early 19th century, it was part of a grand plan by architect John Nash to revamp north London. The canal was once bustling with commercial traffic but now serves as a popular spot for leisure activities like boating and cycling. With its historic tunnels, basins, and locks, Regent's Canal offers a charming escape from the hustle and bustle of the city, perfect for a leisurely stroll or a relaxing boat ride.