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Kosi Bay

Four linked lakes running to a clear tidal mouth, where fences of woven sticks have trapped fish for centuries.

Updated 1 September 2026

UNESCO World Heritage

Typelagoon
WhereKwaZulu-Natal
Nearest cityManguzi about 15 km; Mozambique border about 10 km
Best seasonApril to October; turtles November to February
Time to allowTwo to three days
Getting thereSand tracks from Manguzi; 4x4 required for the mouth and most camps
EntryTicketed; guide required at the mouth

Kosi Bay is a chain of four lakes in the far north-east corner of the country, connected by channels and opening to the sea through a mouth where the water runs clear enough to snorkel among reef fish. The fish traps are what the place is known for: kraals of woven branches set in the shallows in patterns, built and maintained by Tsonga families under a system of inherited rights that has run for generations, catching fish on the falling tide without nets. They are still in daily use, not a display. Raffia palms grow around the lakes in one of the few stands in South Africa, and the coastal forest holds palm-nut vultures. Loggerhead and leatherback turtles nest on the beaches in summer, monitored by a research programme that has run since the 1960s. Access is sand track and 4x4, and everything here is inside iSimangaliso.

Highlights

  • The fish traps - woven kraals still worked daily under inherited family rights.
  • The mouth - clear tidal water with reef fish, snorkelled with a guide.
  • The raffia palms - a rare stand of the species around the lake shores.
  • The turtles - loggerhead and leatherback nesting in summer, monitored since the 1960s.

When to go

April to October for weather; November to February for nesting turtles. Two to three days.

What to expect

You need a 4x4 for the sand tracks - ordinary cars get stuck. The mouth requires a guide and a permit, and numbers are limited. Malaria risk is real in this corner of the country. Facilities are basic and shops are far.

Nearby

Lake Sibaya is south; Mabibi and the Maputaland beaches are down the coast.

Key facts

Heritage statusRamsar site
Location27.0000° S, 32.8333° E · map

Source: Wikidata, item Q3633055, read on 18 October 2026.

What to pack for Kosi Bay

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  • Broken-in walking shoes or boots - Grip and ankle support matter more than looks; never hike in brand-new boots. Find on Amazon
  • Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
  • Your own mask + snorkel - A well-fitting mask is the single biggest comfort upgrade underwater. Find on Amazon
  • Binoculars - The single best wildlife tool - even a compact pair transforms a sighting. Find on Amazon

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