At the end of the exit, you'll see a Sunoco gas station straight ahead; turn right onto Route 372 West.
Take Route I-95 North-bound to Route I-91 North-bound. Please be careful at the junction of I-95 and I-91 in New Haven, CT!
Take I-91 North-bound to Exit 21, "Route 372, Cromwell, CT".
At the end of the exit, you'll see a Sunoco gas station straight ahead; turn right onto Route 372 West.
You will go under I-91 North-bound and South-bound, and past the entrance to I-91 South-bound.
At the next intersection, you'll see a Burger King on the right; turn right onto Sebethe Drive.
The Cromwell Courtyard by Marriott is at 4 Sebethe Drive, after the commuter parking lot, on the right-hand side.
