We're actually not registered anywhere - your presence is gift enough!
From The Graduate Hotel: Pick up the free Red Bus at the W Loop Rd/N Loop Rd stop, and ride about 10 minutes to the Main St/River Rd stop. The venue is about a 5 minute walk from the bus stop. From Manhattan: Take the F train towards Queens to the Roosevelt Island stop. Then, take the free Red Bus to the Main St/River Rd stop, or take an Uber/Lyft to the venue. OR Take the Roosevelt Island Tramway from midtown east, then take the Red Bus. From Queens: Take the Q102 bus to Roosevelt Island - Main St/Octagon stop.
Laguardia Airport is the closest and easiest option, JFK and Newark are a bit farther out.