Bike the Burgh. Tour the City by Bike, rental bikes available
Bike the Burgh

Bike Pittsburgh provides information on biking around Pittsburgh and has bike rentals
Bike Pittsburgh

Adam Solar Tours. For a less strenuous ride, these tours use e-bikes
Adam Solar Tours

Venture Outdoors rents Kayaks in 3 locations around the city. They will provide life jackets with the kayaks and you can have a nice paddle.
Venture Outdoors

Pittsburgh Running Tours has you covered if you want to go for a run and learn about Pittsburgh at the same time.
Pittsburgh Running Tours

Just Ducky Tours. See Pittsburgh by land and water in one tour
Just Ducky Tours

Gateway Clipper Fleet provides a variety of dinner and sightseeing cruises around the 3 rivers of Pittsburgh
Gateway Clipper Fleet

Three Rivers Arts Festival, held in Point State Park and downtown with art demonstrations, art for sale and music... no admission. Through June 10.
Three Rivers Arts Festival

Pittsburgh Pride Fest runs through June 10 with many different activities
Pittsburgh Pride Fest

Jaunt Pittsburgh is an app for phones that is available in the app shops. It allows you to do self guided walking tours of the city and will tell you about the architectural features of the structures around your location

Pittsburgh Concerts

Some other fun activities in the area!