Continents:
* South America: Chile, Argentina, Paraguay, Brazil
* Africa: Namibia, Botswana, South Africa, Mozambique, Madagascar
* Australia: Western Australia, South Australia, Queensland, New South Wales
* Asia: India (Andaman and Nicobar Islands)
Islands:
* Pacific Ocean:
* French Polynesia: Several islands, including Tahiti, Moorea, Bora Bora
* Cook Islands: Rarotonga, Aitutaki
* Pitcairn Islands: Pitcairn, Henderson, Ducie, Oeno
* Easter Island (Chile)
* Juan Fernandez Islands (Chile)
* Norfolk Island (Australia)
* Indian Ocean:
* Mauritius
* Réunion (France)
* Madagascar (large island, partially within the Tropic)
* Comoros
* Atlantic Ocean:
* Saint Helena (United Kingdom)
* Tristan da Cunha (United Kingdom)
* Ascension Island (United Kingdom)
This is not an exhaustive list, as the Tropic of Capricorn passes through many smaller islands and archipelagos. However, it provides a general idea of the major islands and landmasses it crosses.