The park was formed to protect previous coral heads and their resident marine life from damage by over-fishing and trophy collecting of relics, shells, coral etc. Coral species include: branching (acropora), encrusting (turbinaria) and massive (porites).
The National Park receives support of local hoteliers to prevent further stripping of the natural treasures from the reef in order to preserve its ecological and tourist attraction. Beaches with marine park access are Nyali, Bamburi and Shanzu.
Activities are mainly snorkelling, diving and sunbathing. The climate is usually hot and humid.