Need a good spot for a date

I promised my girl a very good date. The problem being I am new to Chandigarh so have absolutely 0 places in my mind. The date I have in mind is some good offbeat view point preferably in the hills. Shouldn’t be too far from Chandigarh. Maybe 30-40 odd kilometres. I want to sit alone, not in a proper view point, but something that very less people visit. Just want to sit there, and eat some packed sandwiches. Anyone has any place in mind for that.