Then you should go to kausani ,it is a bit far from haldwani but trust me its one of the best places in UK. its less explored but buetiful. u can can c the himalayan ranges all thruout. plus it has this ancient temples and a river flowing ryt between the town..
The nearest best place is Nainital 42kms,80mins, Bhimtal 28km 60mins, ramnagar (jim corbet national park) 55 km - 60m the time mentioned is distance covered by car