Rent a canoe or kayak from the South Bridge Boat House for a day of fun on the water. Set sail on your excursion and explore the waters of the Assabet, Sudbury, and Concord rivers. If you don't feel like piloting your own adventure, look into enjoying a river cruise aboard a pontoon boat.
See the city from its streets and from the water with Boston Duck Tours. You'll take a ride on the amphibious DUCK vehicle and see important Beantown landmarks like the Boston Common and the Prudential Tower, and then you'll drive straight into the Charles River and see the city skyline from a distance. All the while, you'll have a tour guide telling you all about everything you're seeing.
Spend an evening enjoying the sounds of the symphony and attend a performance by the Boston Symphony Orchestra. Scheduled performances bring renown classical music pieces to life, including works by composers like Tchaikovsky, Beethoven, Strauss, Stravinsky, Debussy and many others. For a special treat, see if there's a tour of Boston Symphony Hall scheduled before the performance you want to see.
Spend some time exploring Adams National Historical Park. The park is where several historic homes are located, including the birthplaces of John Adams and John Quincy Adams, and the United First Parish Church where both Presidents are entombed. Aside from the houses, there are plenty of attractions to see at this park so sign up for a tour or go on an excursion of your own.