If you like spending time outside, then spend the day at Van Vihar National Park, located 0.3 mi (0.5 km) from central Manali. Want to stretch your legs some more? Head to Pin Valley National Park, located nearby.
If museums are on your list of things to see in Kullu, then you might want to head to Roerich Art Gallery. If you want to experience more of the culture Kullu has to offer, head to Naggar Castle and Tripura Sundari Temple.