What we know so far: 

Our ceremony and reception will be held at the historic Memory Garden in downtown Monterey.  The garden is located directly behind the Pacific House Museum, which is on the Eastern side of the Custom House Plaza.

The address is:

20 Custom House Plaza
Monterey, CA 93940

36° 36' 09.2" N Latitude
121° 53' 39.5" W Longitude
[Eli made us put this in case any of you are coming by boat... :]