Dad's Birthday

Friday is my dad's birthday and we are spending it in NYC. My mom, my sister and I are going to NYC on Wednesday to plan his celebration. I have no idea what to do!He is turning sixty one years old! My mom wants to take him for a romantic day in the park but im like mom he isnt my lover! So no we have absolutely no idea what we are going to do! He has had sixty birthdays, what hasn't he done? Ugh annoying!