Directions:

From CAMPUS:

Find and go west on Chapel Street (from campus that probably means you'll be taking a right). Continue on Chapel Street until the left lane branches off (after St. Raphael Hospital); take the left branch.
Go straight until you see Central Ave. (you'll go through one major intersection), and turn right. Go up a half a block-- you will see stables on your left, and the fields are right beyond them.
Park anywhere along Central Ave.

From the NORTH (and NORTHWEST):

FROM MERRITT PARKWAY (either direction)
Take exit 57 or 58-- regardless, you want Route 34 going east toward New Haven. You'll be on Derby Ave, which you take for about five miles.
You'll then hit a hill with a group of businesses, including a car dealership and the Tremont Motel. At the bottom of the hill (with a cemetary on your right), make a left at the light. This will be Central Ave.
Go up a half a block-- you will see stables on your left, and the fields are right beyond them. Park anywhere along Central Ave.

FROM I-91 SOUTH
Go to the end (in downtown New Haven)-- take exit 1 onto the downtown connector. Then follow the directions from I-95.

From EAST, WEST and SOUTH:

FROM I-95 (either direction)
Take exit 47, the connector into downtown New Haven. Once on the connector, follow the signs for N. Frontage Rd. Keep going on N. Frontage for ~2 miles through some lovely urban wasteland.
At the end, you'll hit E.T. Grasso Blvd-- take a right, and then your first left on Derby Ave. Once on Derby, make a right at the second light, Central Ave. (you'll pass Yale Field on your left).
The fields are to the left off Central Ave, right past the stables.

From due SOUTH:

Swim.