North: Leicester, UK
South: Naples, Florida
Svalbard actually is a somewhat significant tourist destination in the summertime. I was living in Norway at the time, and just took a fairly cheap weekend trip up there.
I can tell you that I’ve been to the North Pole, and yes, I got there by submarine.
We surfaced numerous times on that deployment and played golf and football on the pack ice during periods of “ice liberty.”
All in all, I was north of the Arctic Circle on that deployment for about 4 months, including a port visit to Tromsø, Norway.
When I was on Java and Bali, I was disappointed that I could not see the Southern Cross. Seems you have to travel some ways farther south from the equator before you can see it.
Oh, yeah–that hemisphere. I’ve been to Hobart, Tasmania (42S) for a conference. So for me, it’s 66N and 42S.
North: Akureyri in Iceland, approx 65 degrees N
South: Oban, on Stewart Island in New Zealand, approx 46 degrees S
Unless someone has been to Antarctica, I think I have the south record with Ushuaia in Argentina which crowns itself the southernmost city. on a trip through Chilean Patagonia and over to Tierra del Fuego.
54 degrees south (which, was wasn’t much higher than the temperature as well, unfortunately).
We didn’t use it as the stepping off point for Antarctica like most though. We heard horror stories of that voyage from most of the tourists in town. But if anyone needs a restaurant recommendation, I had the best steak ever there for about six bucks!
I’ve been to Barrow, Alaska at 71.290N, which is as far as I know the farthest you can get on this continent. I haven’t been anywhere interesting south.
Furthest north I’ve ever been:
Montreal at 45[sup]o[/sup] N
Furthest south I’ve ever been:
The Society Islands at about 17[sup]o[/sup] S
Sunspace: Virginia Beach is at about 36.83[sup]o[/sup] N, Julia Pfeiffer Burns State Park is at 36.16[sup]o[/sup] N, making the park slightly further south.
I forgot about my trip to Tahiti, 17°34"S. That was the honeymoon from my first marriage, the memory of which I had nearly completely obliterated from my consciousness.
By the way, can anyone tell me how you make the little degree symbol? My little superscript "o"s are just clumsy and random.
Start>All Programs>Accessories>System Tools>Character Map. Highlight the °, click Select, click Copy. Paste into message reply.
There’s probably other ways, but that gives you access to lots of other symbols as well.
Another report of Barrow as northernmost point. It’s pretty hard to get farther north than that as a casual tourist, unless maybe you go to Svalbard, and I don’t know how many people do.
I’ve never been farther south than Buenos Aires. I definitely want to do Patagonia some day, but given limited vacation time that will probably have to wait until retirement.
The easiest way is just to copy & paste it from someone else’s post.
Well, I don’t have any numbers, but there’s a fairly significant tourist industry in Svalbard, particularly in the summer. I figure it’s mostly Norwegians, but I met people from all over.
Furthest north: Quebec City, Quebec, Canada: 46.48N
Furthest south: Lahaina, Maui, Hawaii, USA: 20.88N
Just above the arctic circle, off the coast of Norway (by ship).
Invercargill, NZ (by car).
This yields a more or less respectable spread of around 113 degrees.
I’m guessing you got to Lahaina by helicopter (the normal driving route would take you to 20.775N).
The quickest way to do it is to hold down ALT and enter 248 on the numeric keypad (it only works on the numeric keypad). Do not enter a leading zero. This information assumes you use Windows.
I’m checking to see if you’re following me around, those are my exact same extreme places. 
Furthest north: North Cape, Norway, 71°10′21″N.
Furthest south (I think…): Orlando, Florida, USA, 28°32′1″N.