North: Grande Vallee, Quebec - 49° 13′ 34″ N latitude and 65° 7′ 30″ W longitude
South: Key West, Florida - 24°33′55″ N latitude and 81°46′33″ W longitude
East: Louisbourg, Nova Scotia - 45° 55′ 12″ N latitude and 59° 58′ 22″ W longitude
West: Kerrville, Texas - 30° 02’ 28" N latitude and 99° 08’ 16" W longitude
On my Android phone w the Google Maps app, if I press and hold on a spot, the pop-up from the bottom translates the location into a street address if possible; if not, it displays a lat/long. In either case, the input box at the top of the map is filled with the lat/long of the spot I pressed.
We also got a bit farther south than my southermost landing at Neko Island.
We went as far as an inlet at Petermann Island at -65.2 latitude. As usual we anchored then they sent a shore party out to reconnoiter. But once ashore the decided the waves and weather was too bad for us noobs. So they retreated back to the ship and we never debarked. So still about 1-1/2 degrees north of the Antarctic circle, but closer than my southernmost landfall.
I went in 2015 I believe at the time there were a couple of cruises that crossed the Antarctic Circle each year at the end of the season when there was the least ice. My cruise wasn’t one, but we went further South than scheduled when overcast weather meant it would be too dark for the planned evening landinf so we went to the Lemaire Channel (Iceberg Alley) instead. Hence my 65 degree S.
Whoops - yes you are right of course. Correcting the record:
N Longyearbyen, Svalbard +78
S Jindabyne NSW -36
E Brisbane QLD +153
W Dillingham Airfield, HI -158
I would have assumed Guam was my furthest east - I was surprised to find that the east coast of Australia is further east. Just shows how our mental world map can be distorted.
Another perspective: by direction of travel, Hawaii (Diamond Head, Oahu) is actually my furthest east, with my furthest west being Muir Woods, California at -122.
Note that the antipodal point of Buenos Aires is somewhere between Beijing and Shanghai, both of which I’ve also visited, so in this sense I like to think of myself as having circumnavigated the world (though not on one journey - but then again, isn’t my entire life, including the trips back home, one journey?)
Along this lines, I’ve read that the Pilgrims expected Massachusetts to have a climate similar to Spain, since they’re at about the same latitude. That’s one of the reasons they were woefully unprepared for the harsh Massachusetts winter.