Welcome to Makay Massif
At this stage, there's very little tourist infrastructure and only a few operators run bivouac expeditions here. Expect that to change. One Ranohira company that already offers week-long expeditions to the Massif du Makay is Momo Trek, while further afield Malagasy Tours, Mad Trekking and several international operators are offering trips here. Otherwise, your best bet is to discuss the options with Isalo park guides.
The Massif du Makay is a rough eight- to 10-hour 4WD journey north of Ranohira, with a ferry crossing (Ar10,000 per vehicle) across the Mangoky River at Beroroha.