- Go to Google Maps and type these words--Concord Lane, Princeton, NJ--into the box at the top. The walk starts at the deadend of Terhune Road, just beyond the intersection with Concord Lane.
- Or take Route 27 east from Princeton towards Kingston. Carnegie Lake will be on your right. Before reaching Kingston, take a left on Dodds Lane, then the first right, on Corncord Lane, then turn right on Terhune Rd and you're there.
- To bike, take Terhune Road east. It turns into Van Dyke Road briefly before running into Snowden Lane. At that intersection, cross Snowden Lane and take the bike trail through Smoyer Park woods, staying to the right. At the other end of the woods, Terhune Road magically reappears and you continue east until you reach the deadend.
The NJ Trails website (Mercer County page) is generally helpful, if you want trail maps for Princeton nature preserves, but Gulick Park isn't mentioned there.