Savarnadurga Fort was built during the Hoysala dynasty and offers panoramic views of the surrounding hills and valleys. The trek up to the fort takes around an hour and is moderately difficult.
The Manchanabele Dam is a beautiful spot for a picnic or a quick swim. You can also enjoy water sports like kayaking and rafting here.
Kamat Lokaruchi is a popular restaurant that serves delicious South Indian food. Their speciality is the thali, which is a platter of several vegetarian dishes.
Also known as TK Falls, this is a beautiful waterfall that's surrounded by lush greenery. You can take a dip in the cool waters and relax for a while.
The Pyramid Valley International is a meditation center that has a massive pyramid-shaped meditation hall. You can learn about meditation and spirituality here.
If you have some extra time, you can also visit the Dodda Alada Mara, which is a 400-year-old banyan tree that's spread across 4 acres. You can also visit the nearby Kengal Anjaneya Swamy Temple. For a day trip, this itinerary should suffice. Make sure to wear comfortable shoes and carry enough water.