If you like spending time outside, why not spend the afternoon at Silbersee, a park located 4.2 mi (6.7 km) from the center of Hannover. Want to stretch your legs some more? Head to Eilenriede and Herrenhausen Gardens, both nearby.
If want to top up your tan, you might want to head out to Sandstrand, located 2 mi (3.2 km) from central Isernhagen. Enjoy the sunset by the shore at Mini-Golf.