Coastline:

356,000 km

note: 95 nations and other entities are islands that border no other
countries, they include: American Samoa, Anguilla, Antigua and
Barbuda, Aruba, Ashmore and Cartier Islands, The Bahamas, Bahrain,
Baker Island, Barbados, Bermuda, Bouvet Island, British Indian Ocean
Territory, British Virgin Islands, Cape Verde, Cayman Islands,
Christmas Island, Clipperton Island, Cocos (Keeling) Islands,
Comoros, Cook Islands, Coral Sea Islands, Cuba, Curacao, Cyprus,
Dominica, Falkland Islands (Islas Malvinas), Faroe Islands, Fiji,
French Polynesia, French Southern and Antarctic Lands, Greenland,
Grenada, Guam, Guernsey, Heard Island and McDonald Islands, Howland
Island, Iceland, Isle of Man, Jamaica, Jan Mayen, Japan, Jarvis
Island, Jersey, Johnston Atoll, Kingman Reef, Kiribati, Madagascar,
Maldives, Malta, Marshall Islands, Martinique, Mauritius, Mayotte,
Federated States of Micronesia, Midway Islands, Montserrat, Nauru,
Navassa Island, New Caledonia, New Zealand, Niue, Norfolk Island,
Northern Mariana Islands, Palau, Palmyra Atoll, Paracel Islands,
Philippines, Pitcairn Islands, Puerto Rico, Reunion, Saint
Barthelemy, Saint Helena, Saint Kitts and Nevis, Saint Lucia, Saint
Pierre and Miquelon, Saint Vincent and the Grenadines, Samoa, Sao
Tome and Principe, Seychelles, Singapore, Solomon Islands, South
Georgia and the South Sandwich Islands, Spratly Islands, Sri Lanka,
Svalbard, Tokelau, Tonga, Trinidad and Tobago, Turks and Caicos
Islands, Tuvalu, Vanuatu, Virgin Islands, Wake Island, Wallis and
Futuna, Taiwan

Maritime claims:

a variety of situations exist, but in general, most countries make the following claims measured from the mean low-tide baseline as described in the 1982 UN Convention on the Law of the Sea: territorial sea - 12 nm, contiguous zone - 24 nm, and exclusive economic zone - 200 nm; additional zones provide for exploitation of continental shelf resources and an exclusive fishing zone; boundary situations with neighboring states prevent many countries from extending their fishing or economic zones to a full 200 nm

Climate:

a wide equatorial band of hot and humid tropical climates - bordered north and south by subtropical temperate zones - that separate two large areas of cold and dry polar climates

Terrain:

the greatest ocean depth is the Mariana Trench at 10,924 m in the Pacific Ocean

Elevation extremes: