A taxi or tuk-tuk around town costs Ar1000. The fare doubles if you ask to be taken anywhere off the main road, such as to the beachside hotels.
To explore the region, visit plantations or the Loky Manambato Protected Area, there are a couple of car-hire companies in town such as Nord-Est Location. It's best to hire a guide from the tourist office, too, as tours are mostly in French, and drivers usually don't speak English. Drivers also become less informative as the day wears on and they start to chew khat (leaf chewed as a stimulant).