This is a pro tip, but also a summer tip, take the ferry from Lower Manhattan to Rockaway and spent the day. The beach is great and the area is impossible to gasp that it's 30 min from Manhattan (without traffic) - Eat as many tacos you can, cause it's the best in the state of New York!
My friends, Dee & Ricky, recently opened up their own restaurant at the ripe age of 24 in the Clinton Hill neighborhood. I stop in here every now and then for the roti. Also, there's a really cool (Nigeria-owned) sandwich & smoothie spot next door that is not pictured.