Though someone on Reddit probably did this years ago, to the best of my ability to figure it out, here’s the travel route in Harold & Kumar Go To White Castle (warning: there be spoilers):
Starting in Hoboken, at condos that look like some of the high-rises on the end of Bloomfield St. near the train tracks, they head to New Brunswick on the Turnpike (exit 14C to at either Exit 9 or 11, depending on which variable in the next step they chose).
They go to the either the Edison White Castle on Rt. 1 (getting off the Turnpike at 11 and heading west through Woodbridge to 1 South) or the New Brunswick White Castle on Rt. 27 (Turnpike exit 9 to 18 North into New Brunswick, French St./Rt. 27 exit). Note that both of these White Castle locations are actually still there, and neither were closed at the time of shooting. The White Castle in question looks more like the Edison one, but they said it was the New Brunswick one. This is the one interchangeable set of variables in the movie.
Let’s just go with Rt. 1 in Edison, which they may have been stoned enough to think was in New Brunswick, though the New Brunswick one on Rt. 27 would also point them in the right direction and work fine as a direct, if scenic route to Princeton. So, from the former (-ish) White Castle, after getting directions from Pookie’s friend, they go to Princeton University, hit the party, try to buy weed and get chased by the police for the first time before leaving.
From Princeton, headed back toward the Turnpike (Exit 8, East Windsor) with the intention of going to Cherry Hill (Exit 4), they get on Rt. 33 East, run into Rosenberg and Goldstein for the first time (who are suddenly mobile, not as stoned and heading to Princeton) then Harold gets bitten by the raccoon, so they overshoot the exit and drive to Centra State Medical Center in Freehold (they show the sign when they get there), since Kumar knows his way around it a little bit and his dad/brother work there.
Leaving there, between Freehold and exit 8 on the Turnpike (East Windsor, travelling back the way they came), see Maria (another Hoboken resident suddenly in western Monmouth County) and end up in the ditch that Freakshow picks them up in (probably in Englishtown on 33, just outside of Freehold).
After they’re back on the road, they find NPH hitchhiking on 33, right around Monroe. Perhaps owing to an off-camera conversation between the guys and NPH after they pick him up or just due to distraction, they overshoot exit 8 again and end up at a gas station in Princeton where NPH steals Harold’s car, and they encounter the cop. This is why, when they get to the police station, Bradley the “business hippy” from Princeton is in the station they’re taken to.
After escaping the police station, not far from there, they encounter the cheetah (which probably escaped from either Six Flags Great Adventure or one of the wildlife preserves near there in Jackson). As cheetahs can cover great distances in a short time, they probably hauled ass heading south and eventually parallel to Rt. 295 in Hamilton (which stands to reason if the cheetah just wanted to go home; from where it lost H&K, it could’ve made a left onto 195 East in Hamilton and taken that back to Jackson).
After the cheetah loses them in Hamilton, not too far from Princeton, they see Rosenberg, Goldstein and Cindy Kim eating hot dogs, and for the 3rd time in one night, the EXTREME guys (They were also outside the condos and at the gas station in Princeton; must’ve been SOME fucking party at Princeton that night if virtually everyone in Hoboken ended up there!). They then steal the EXTREME guys’ 4 x 4, travel down 295 to Cherry Hill before ditching the truck and hanggliding off some hill in the area (someone more familiar with the topography in the area may have an idea of where this’d be feasible), finally ending up at the mythical Cherry Hill White Castle (which they also could’ve gotten to, via Pookie’s friend’s directions, by taking 1 South to 295 South).
NPH gives them back their car at White Castle, they hop back on the Turnpike at exit 4 or so as stated earlier, and it’s smooth sailing back to Hoboken.
No visual aid here, but does this sound about right?
And no, I don’t know where the portal from Hamilton, NJ to Hamilton, ON is (there’s a Shoppers Drug Mart in the Hamilton scene, and those are a Canadian concern, of course), but if anyone finds it, please let me know. It’d cut my drive to Toronto by a bunch and help me skip the border crossing.
P.S. here’s a list of every real White Castle location (snagged from White Castle’s web site) that’s geographically closer to Harold & Kumar’s home town of Hoboken, NJ than Cherry Hill, NJ is (86.2 miles, if you’re curious). 3 of these locations (Morganville, NJ, East Brunswick, NJ, which is still being built, and Rahway, NJ, which may not have been completed yet) were not open at the time the movie was filmed, but they still had plenty of options. Yes, even the Whitehall, PA location, if it existed in 2003-2004, is 86.1 miles to Cherry Hill’s 86.2 miles. There actually isn’t a White Castle in Cherry Hill, if you missed that, so we’re going strictly town-to-town with that driving distance, but…
600 Westfield Ave.
Intersection of Westfield Ave. @ Elmora Ave.
Elizabeth NJ, 07208
1341 Main Ave.
Intersection of Main Ave. near Piaget
Clifton NJ, 07011
9271 Kennedy Blvd.
Intersection of Kennedy Blvd. @ Bergenline
North Bergen NJ, 07047
467 Central Ave.
Intersection of Central Ave. @ Scotland Rd.
Orange NJ, 07050
2995 Kennedy Blvd.
Intersection of Kennedy Blvd. @ Newark Ave.
Jersey City NJ, 07306
987 U.S. Hwy. 9
Intersection of Highway 9 near Ernston Rd.
South Amboy NJ, 08879
8 LaFayette Rd.
Intersection of No. 8 Lafayette Rd. @ U.S. Route 1
Metuchen NJ, 08840
2458 Rte. 22
Intersection of Route 22 @ Springfield Ave.
Union NJ, 07083
37 State Rte. 17
Intersection of S.R. 17 near Cleveland
Hasbrouck Hts. NJ, 07604
247 Hwy. 35N
Intersection of S.R. 35 near Monmouth Mall
Eatontown NJ, 07724
366-68 U.S. Hwy. 22
Intersection of Rt. 22 @ King George Rd.
Green Brook NJ, 08812
5151 Stelton Rd.
Intersection of Stelton & Metlars
South Plainfield NJ, 07080
132 Rte. 37 E.
Intersection of Route 37 & Hooper
Toms River NJ, 08753
Intersection of Broadway & Elwood Ave.
Newark NJ, 07104
480 Lyons Ave.
Intersection of Lyons Ave. & Cordier St.
Irvington NJ, 07111
680 Somerset St.
Intersection of Rt. 27 near Quentin Ave.
New Brunswick NJ, 08901
Intersection of Broadway & Straight St.
Paterson NJ, 07501
2001 Edgar Rd.
Intersection of Rt. 1/9 & Park Ave.
Linden NJ, 07036
3810 Kennedy Blvd.
Intersection of 39th St. & Kennedy Blvd.
Union City NJ, 07087
310 Burgen Tpke.
Intersection of 310 Bergen Turnpike
Little Ferry NJ, 07643
2151 U.S. Hwy. 9
Intersection of US 9 & West Farm Rd.
Howell NJ, 07731
1113 U.S. Hwy. 46
Intersection of 1113 Rt 46
Ledgewood NJ, 07852
951-957 S. Orange Ave.
Intersection of Orange Ave & S Clinton St
East Orange NJ, 07018
310 Mountain Avenue
Intersection of SR 57 / SR 182
Hackettstown NJ, 07840
1335-1341 South Ave.
Intersection of Terrill Rd & South Ave. ( Rt 28 )
Plainfield NJ, 07062
2077 Route 1
Rahway NJ, 07065
36 Rt. 9 N.
Morganville NJ, 07751
1306 Rt. 22
Phillipsburg NJ, 08865
645 Highway 18
East Brunswick NJ, 08816
550 E. Fordham Rd.
Intersection of East Fordham Rd. @ Lorillard Pl.
Bronx NY, 10458
2701 Boston Rd.
Intersection of Boston Rd. @ Allerton Ave.
Bronx NY, 10467
213-17 Northern Blvd.
Intersection of Northern Blvd. @ Bell Blvd.
Bayside NY, 11361
490 Sunrise Hwy.
Intersection of Sunrise Hwy. @ Broadway On New York 27
Lynbrook L.I. NY, 11563
88-08 Northern Blvd.
Intersection of Northern Blvd. @ 88th St.
Jackson Hts. NY, 11372
19 Hempstead Tpke.
Intersection of Hempstead Tnpk. @ Front St. On New York 24
West Hempstead NY, 11552
89-03 57th Ave.
Intersection of 57th Ave. @ Queens Blvd.
Elmhurst NY, 11373
846 Empire Blvd.
Intersection of Utica Ave. @ East New York Ave & Empire
Brooklyn NY, 11213
43-02 Queens Blvd.
Intersection of Queens Blvd. @ 43rd St.
Sunnyside NY, 11104
3101 Atlantic Ave.
Intersection of Atlantic Ave. @ Highland Place
Brooklyn NY, 11208
1677 Bruckner Blvd.
Intersection of Bruckner Blvd. near Sound View Ave.
Bronx NY, 10472
1831 Webster Ave.
Intersection of Webster Between 175th & 176th St.
Bronx NY, 10457
42-02 Fort Hamilton Pkwy.
Intersection of Fort Hamilton Parkway @ 42nd St.
Brooklyn NY, 11219
6207 Sunrise Hwy.
Intersection of Sunrise Highway @ Willow St. On New York 27
Massapequa NY, 11758
540 Walt Whitman Rd.
Intersection of Route 110 near Amityville
Huntington Station NY, 11747
2237 Jericho Tpke.
Intersection of Jericho Turnpike & County Line Rd.
Commack L.I. NY, 11725
2201 Middle Country Rd.
Intersection of Middle Country Rd. & North Washington
Centereach NY, 11720
136 New York 59
Intersection of West Rt. 59 near Dykes Park Rd.
Nanuet NY, 10954
900 Pennsylvania Ave.
Intersection of Pennsylvania Between Stanley & Wortman
Brooklyn NY, 11207
781 Metropolitan Ave.
Intersection of Metropolitan Ave. & Humboldt St.
Brooklyn NY, 11211
3663 Boston Rd.
Intersection of Boston Rd. & Ely St.
Bronx NY, 10466
531 Myrtle Ave.
Intersection of NWC Myrtle Ave. & Steuban St.
Brooklyn NY, 11205
112-11 Springfield Blvd.
Intersection of Sec-Springfield Blvd. & 112th Ave.
Queens Village NY, 11429
959 Atlantic Ave.
Intersection of Atlantic Ave. & Grand Ave.
Brooklyn NY, 11238
257 S. Broadway
Intersection of Broadway & Highland Ave.
Yonkers NY, 10705
9808 Rockaway Blvd.
Intersection of Sec-Rockaway Blvd. & 98th St.
Ozone Park NY, 11417
175-28 Hillside Ave.
Intersection of Sec-Hillside Ave. & 175th St.
Jamaica NY, 11432
2900 E. Tremont Ave.
Intersection of Sec-Tremont Ave. & Dock St.
Bronx NY, 10461
931 Westchester Ave.
Intersection of 931 Westchester Ave.
Bronx NY, 10459
2221 Hylan Blvd.
Intersection of Hylan Blvd. & Lincoln Ave.
Staten Island NY, 10306
2092-2094 7th Ave.
Intersection of W. 125th St. & 7th Ave.
New York NY, 10027
351 E. 103rd St.
Intersection of 1st & 103rd
Manhattan NY, 10029
786 Suffolk Ave.
Intersection of Suffolk Ave. & Washington Ave.
Brentwood NY, 11717
525 8th Ave.
Intersection of 8th Ave Between 36th & 37th
Manhattan NY, 10018
1545 Myrtle Ave.
Intersection of Myrtle Ave. Between Linden & Gates Ave.
Brooklyn NY, 11237
265 Broad Hollow Rd.
Intersection of SR 110 & Allen Blvd.
Farmingdale NY, 11735
1690 Deer Park Ave
Intersection of Deer Park & Monsignor Rooney St
Deer Park NY, 11729
2238 Forest Ave.
Staten Island NY, 10303
1280 MacArthur Road
Whitehall PA, 18052