Antarctica
 
 
90 00 S
0 00 E
 
  Climate: severe low temperatures vary with latitude, elevation, and distance from the ocean; East Antarctica is colder than West Antarctica because of its higher elevation; Antarctic Peninsula has the most moderate climate; higher temperatures occur in January along the coast and average slightly below freezing
Terrain: about 98% thick continental ice sheet and 2% barren rock, with average elevations between 2,000 and 4,000 meters; mountain ranges up to nearly 5,000 meters; ice-free coastal areas include parts of southern Victoria Land, Wilkes Land, the Antarctic Peninsula area, and parts of Ross Island on McMurdo Sound; glaciers form ice shelves along about half of the coastline, and floating ice shelves constitute 11% of the area of the continent
 
 

Abercrombie and Kent
Adventure Associates
Adventure Life Journeys
Adventure Network International
AdventureSmith Explorations
Antarctic Shipping S.A.
Antarctica XXI S.A.
Aqua-Firma
Audley Travel
Aurora Expeditions
Cheesemans' Ecology Safaris
Chimu Adventures
Cosmopolitan Adventure Tours
Diverse Travel
EcoQuest Travel, Inc.
Exodus Travel
Explore!
Fathom Expeditions, Inc.
G.A.P Adventures
Geographic Expeditions
Hapag-L loyd Kreuzfahrten
Hurtigruten Group ASA
INTRAV / Clipper Cruise Lines
JOURNEYS International
kumuka
Lindblad Expeditions
Mountain Travel Sobek
Myths and Mountains
Natural Habitat Adventures
Nature Travel Specialists LLC
Naturetrek
Oceanwide Expeditions
Peregrine Adventures Pty Ltd
Polar Cruises
Polar Star Expeditions
Quark Expeditions
Travel Dynamics International
Wild Earth Travel
Wilderness Travel
Zegrahm Expeditions