Hop on the RiverLoop (yep, it's a boat) at the Walnut Street Dock (under the Walnut Street Bridge) and glide down the river to learn secrets of the 1700's at America's oldest botanic garden, Bartram's Garden. Continue on to Fairmount Water Works and learn the history of today's beautiful skyline and landscapes.
Although it may not be the most exciting tour you'll ever take, it will be interesting and relaxing.
The tour is perfect for tourists (and residents) of any age. Tickets are $20 for adults and $15 for students and kids under twelve.