Mtwara was designed to be a major town and exporter of ground nuts, however when the ground nut scheme collapsed before it was started, the town never really finished being built. As a result the town is spread out, which can leave you with a bit of a walk to get between places. Bicycles are a great way to get around town and can be hired from the market for 2000-3000/= per day.
Taxis, Tuktuks little three wheeled vehicles called bajaji in Swahili, and motorbike taxis pikipiki in swahili are available around town. Expect to pay 2000-4000/= for a taxi journey about town, 1000-2000/= for a bajaji and 1000/= for a motobike taxi.