Mombasa Marine National Park

Key Facts About Mombasa Marine Park

Marine Life and Biodiversity

Mombasa Marine National Park became a protected area in 1986. This status has allowed biological density to recover significantly compared to non-protected zones along the North Coast. Unlike the pelagic waters of the Pemba Channel, this park primarily functions as a fringing reef lagoon system, supporting shallow-water biodiversity.

The ecosystem supports a high concentration of invertebrate and vertebrate species. Visitors may encounter the following on the seabed:

• Crustaceans: Coconut Crabs (*Birgus latro*) found near the shoreline and various hermit crab species inhabiting the intertidal zones.
• Echinoderms: Red-knobbed Starfish (*Protoreaster linckii*) and long-spined Sea Urchins (*Diadema setosum*) are indicators of reef health.
• Cephalopods: Octopuses and squid hide within the coral crevices, particularly active during tidal changes.
• Sea Turtles: Green Sea Turtles (*Chelonia mydas*) and Hawksbill Turtles (*Eretmochelys imbricata*) use the park as a foraging ground. They are often spotted feeding on seagrass beds.

Pelagic species, such as Bottlenose Dolphins (*Tursiops*) and Spinner Dolphins, occasionally breach the reef barrier. They frequent the deeper waters just beyond the break. Humpback Whales also pass the outer reef between July and September due to seasonal migration. This contrasts with the year-round resident populations of smaller cetaceans.

Coral Reef Ecosystems and Conservation

The benthic structure of Mombasa Marine National Park is dominated by a fringing reef that runs parallel to the coastline.

This barrier creates a calm lagoon environment that supports the proliferation of hard and soft corals. Mombasa's reefs are accessible at shallower depths, unlike the deep-water coral gardens of Malindi. This makes them susceptible to tidal variations and temperature shifts.

The reef architecture consists primarily of:

• Acropora Corals: Branching species, such as Staghorn Coral, provide shelter for juvenile fish.
• Porites Corals: Massive boulder corals form the backbone of the reef structure and resist strong wave action.
• Soft Corals: Leather corals (*Sarcophyton*) and other biological fabrics filter nutrients from the water column.

Conservation efforts managed by the Kenya Wildlife Service (KWS) focus on mitigating physical damage from boat anchors and addressing coral bleaching events. The park also includes extensive seagrass meadows, featuring species like *Thalassia hemprichii*. These meadows act as carbon sinks and sediment traps. They prevent coastal erosion and maintain water clarity for the coral polyps.

Diving and Snorkelling Opportunities

Mombasa Marine National Park offers a distinct diving profile compared to the drift dives of the South Coast. Patch reefs and artificial structures define the topography, rather than sheer wall drop-offs. The inner lagoon lacks strong currents, making it suitable for novice divers and macro-photography enthusiasts.

Dive sites and snorkelling zones include:

• The MV Dania Wreck: A cattle carrier scuttled intentionally in 2002. It lies at a depth of 30 metres and acts as an artificial reef, hosting large Groupers and schools of Batfish.
• Shark Point: Located on the outer reef, this site allows encounters with White-tip Reef Sharks and Spotted Eagle Rays. This contrasts with the smaller reef fish found in the lagoon.
• Coral Garden: A shallow zone ranging from 3 to 7 metres, populated by Angelfish, Damselfish, and Butterflyfish, accessible to snorkelers without SCUBA equipment.

Boat Tours and Excursions

Motorised and non-motorised vessel operations have strict regulations to prevent reef damage. The primary mode of exploration for non-swimmers differs from other Kenyan parks. Glass-bottom boats are the standard here, rather than larger commercial ferries.

Marine excursions typically involve:

• Glass-Bottom Boat Tours: These vessels operate from Bamburi and Shanzu beaches. They allow visual access to the reef without water entry. Operators must follow specific corridors to avoid grounding on coral heads.
• Traditional Dhow Sailing: Wooden sailing vessels offer sunset cruises and access to the outer reef. They often combine historical Swahili maritime culture with marine observation.
• Deep Sea Fishing Charters: Fishing is prohibited within the National Park boundaries. Charters transit through the park to reach the National Reserve and international waters, where game fishing for Marlin and Sailfish is permitted.

Things to Do and See at Mombasa Marine

The park offers specific recreational experiences beyond standard aquatic activities, influenced by the Indian Ocean's tidal range. The interaction between the intertidal zone and the tourist infrastructure is unique to this coastal section.

Key activities include:

• Low Tide Reef Walks: Large sections of the reef flat become exposed when the tide recedes. Visitors can walk up to the reef crest to observe trapped marine life in rock pools. Protective footwear is mandatory to avoid stonefish injuries.
• Windsurfing and Kitesurfing: The reef protects the lagoon waters, providing flat-water conditions for wind sports. This is particularly true during the Kaskazi (northeast monsoon) and Kusi (southeast monsoon) trade winds.
• Sunbathing on Sandbars: Temporary sand islands emerge at low tide, offering isolated locations for relaxation surrounded by ocean water. This feature is less common in the steeper shorelines of the south.

Park Fees, Transport, and Accommodation When Visiting Mombasa Marine Park

Logistics for a trip to Mombasa Marine National Park are straightforward. This guide covers park fees, transport from Nairobi and other locations, and advice on accommodation.