I have been to Nanital for many times. What I found everytime was that there are limited activities to do. You can do boating, horseriding, visit zoo at the height of 7000ft. These all things can be done within a single day. Nanital does not seems to be an interesting place for me if you are travelling again. It is a one time visiting place. Moreover, Nanital has not got facilities such as good hotels and street foods. Street food is the worst food of Nanital that I have ever tasted. If you are friendzoned and planning for a hill station visit then in my point of view Manali is better than Nanital. You can have adventurous road trip and fun in Manali. That’s for sure!