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 exhibition from Dec1 2017- Feb1 2018. gallery space on the picture. Usagi NY is secret cool creative place in Dumbo area. The space is designed by Sou Fujimoto. You can find rare archtecture book from Japan and Moma Book store. There are nice Japanese design products that difficult to find in NY. Its great for gift, or special object for your home. My recommendation is Matcha latte (usagi have very hi-quarity real Japanes Matcha from Ippodo Kyoto) -