Mama Ngina Waterfront gives Mombasa a public front door to the harbour. The park runs along the water near the old town and ferry approaches, with promenades, open lawns, views of ships and the channel, and the easy bustle of families, vendors, and evening walkers.
It is most enjoyable late in the day, when the heat drops and the waterfront fills with local life. Treat it as a place to stroll and snack rather than a formal sight. Combined with Fort Jesus and the old town, it helps explain Mombasa as a working port, not just a beach gateway.