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The 10 most beautiful islands in South Africa are a blend of untouched natural beauty, diverse marine life, and serene escapes that rival the world’s best island destinations. Scattered along the country’s coastline and within its river systems, these hidden gems offer everything from tropical tranquillity to rich cultural history. Whether you’re seeking quiet beaches, birdwatching havens, or eco-adventures, South Africa’s islands provide unforgettable experiences. This guide explores the most captivating islands that promise scenic beauty and peaceful retreats — perfect for travellers looking to discover the country’s lesser-known wonders beyond its iconic landmarks and bustling cities!
10 Islands In South Africa
Experience a new side to the country’s beauty and culture with our detailed guide to the 10 best islands in South Africa worth visiting:
1. Robben Island
Photo: Moheen Reeyad / Wikimedia Commons
Robben Island, located off the coast of Cape Town, is renowned for its historical significance as the prison where Nelson Mandela was incarcerated for 18 years. The island’s museum offers guided tours led by former inmates, providing personal insights into the struggles faced during apartheid. Visitors can explore the maximum-security prison, the limestone quarry where prisoners laboured, and the leper graveyard. The island also houses a church and a lighthouse, adding to its historical tapestry. It is one of the most famous islands in South Africa, worth a visit.
Nearest Airport: Cape Town International Airport (CPT)
Nearest Seaport: Cape Town Harbour
2. Seal Island
Photo: Hurkummer / Wikimedia Commons
Seal Island in False Bay is home to a large colony of Cape fur seals, attracting numerous seabirds and marine predators. It is one of the small islands in South Africa and is particularly famous for the breaching behaviour of great white sharks during hunting. The seals and the surrounding marine fauna can be seen up close on boat cruises departing from Simon’s Town. Although the public cannot reach the island itself, there are plenty of possibilities to observe wildlife in the nearby waters.
Nearest Airport: Cape Town International Airport (CPT)
Nearest Seaport: Simon’s Town Harbour
3. Bird Island (Lambert’s Bay)
Photo: Calistemon / Wikimedia Commons / Image For Representation Only
Bird Island, situated just 100 metres off the shore of Lambert’s Bay, is a haven for bird enthusiasts. It hosts one of only six breeding colonies of Cape gannets worldwide, making it a unique destination for observing these birds up close. Visitors can easily access the island thanks to a causeway that connects it to the mainland. The island features a modern bird hide and an informative museum detailing the life cycles of the resident birds. It is one of the most beautiful islands in South Africa for bird lovers.
Nearest Airport: Cape Town International Airport (CPT)
Nearest Seaport: Lambert’s Bay Harbour
4. Dassen Island
Photo: CC0 Public Domain / PxHere / Image For Representation Only
Dassen Island, located approximately 9 km off the coast of Yzerfontein, is South Africa’s second-largest island. It serves as a nature reserve, providing a sanctuary for various seabirds and marine life. For the preservation of African penguins and other seabird species, the island is very crucial. Access to the island is restricted, requiring permits for research and educational visits. The surrounding waters are rich in marine biodiversity, attracting researchers and conservationists.
Nearest Airport: Cape Town International Airport (CPT)
Nearest Seaport: Yzerfontein Harbour
5. St. Croix Island
Photo: Matt H. Wade / Wikimedia Commons
The Addo Elephant National Park Marine Protected Area includes St. Croix Island, which is close to Port Elizabeth. It is renowned for hosting the largest breeding colony of African penguins globally. The island, along with nearby Brenton and Jahleel Islands, forms a critical habitat for various seabirds. Boat tours from Port Elizabeth offer opportunities to observe the penguins and other marine life, including dolphins and seals. To preserve the delicate ecosystems, the islands are off-limits to the general public.
Nearest Airport: Port Elizabeth International Airport (PLZ)
Nearest Seaport: Port Elizabeth Harbour
6. Thesen Island
Photo: Neil Fantom / Wikimedia Commons
Thesen Island, located in the Knysna Lagoon, is a vibrant marina development offering a mix of residential, commercial, and recreational spaces. It is one of the private islands in South Africa that is open to public use. The island features a network of canals, boutique shops, and diverse dining options. Visitors can enjoy activities such as kayaking, cycling, and leisurely walks along the waterfront. The island is also home to the Knysna Seahorse, an endangered species unique to the area. Educational displays and conservation initiatives highlight the importance of preserving this delicate ecosystem.
Nearest Airport: George Airport (GRJ)
Nearest Seaport: Knysna Harbour
7. Leisure Island
Photo: XEON / Wikimedia Commons
Leisure Island, also situated in the Knysna Lagoon, offers a tranquil retreat with scenic views and outdoor activities. The island is connected to the mainland by a causeway, allowing easy access for visitors. Popular activities include swimming, kayaking, and birdwatching in the surrounding estuary. The island features a small nature reserve, providing habitats for various bird species and indigenous plants. Local art galleries and quaint eateries add to the island’s charm.
Nearest Airport: George Airport (GRJ)
Nearest Seaport: Knysna Harbour
8. Inhaca Island
Photo: Iris Santos Design 2011 / Wikimedia Commons
Off the coast of Mozambique, Inhaca Island is renowned for its immaculate beaches and abundant flora. The island features diverse ecosystems, including coral reefs, mangroves, and dune forests. Activities such as snorkelling, diving, and birdwatching attract nature enthusiasts. The island is home to a marine biology research station, contributing to conservation efforts. Visitors can explore the Inhaca Lighthouse and the Marine Biology Museum for insights into the island’s natural history.
Nearest Airport: Maputo International Airport (MPM)
Nearest Seaport: Maputo Harbour
9. Schaapeneiland
Photo: Winfried Bruenken / Wikimedia Commons / Image For Representation Only
Schaapen Island, situated near Langebaan, is part of the West Coast National Park’s marine protected area. The island serves as a breeding ground for various seabirds, including kelp gulls. To preserve the delicate ecosystems, access to the island is limited. Kayaking around the island offers opportunities to observe the rich marine life and bird populations. The surrounding lagoon is known for its clear waters and diverse ecosystems.
Nearest Airport: Cape Town International Airport (CPT)
Nearest Seaport: Langebaan Harbour
10. Marion Island
Photo: franek2 / Wikimedia Commons
The South African National Antarctic Programme is in charge of Marion Island, a remote research facility in the sub-Antarctic Indian Ocean. Only researchers and support staff are allowed access to the island. Numerous seabirds, seals, and indigenous plant species can be found in the island’s distinctive ecosystems. Scientific studies focus on climate change, biodiversity, and conservation. Occasionally, specialised expeditions offer opportunities to observe the island’s wildlife from nearby vessels.
Nearest Airport: Cape Town International Airport (CPT)
Nearest Seaport: Cape Town Harbour
From serene lagoons to wildlife-rich shores, the islands in South Africa offer something for every traveller. These diverse destinations blend natural beauty, rich history, and unique ecosystems, making each visit truly unforgettable. Whether you’re tracing the footsteps of history on Robben Island or kayaking through the calm waters of Leisure Island, there’s a story waiting at every turn. Plan a trip with TripXL and enjoy these island escapes.
Cover Photo: Diego Delso / Wikimedia Commons
