Things to Do in Madagascar in August

August is the crescendo of Madagascar's whale season. Humpback mothers and their calves congregate in the warm shallow waters between Ile Sainte-Marie and the mainland, and on a good morning you can count a dozen spouts from the beach before you even get on a boat. The sea is calm enough that small pirogues, the traditional outrigger canoes, can operate safely, and the whales in this corridor tend to be remarkably unbothered by boats, sometimes surfacing close enough that you hear the explosive exhale before you see the blowhole. Water temperature hovers around 24°C (75°F), which sounds warm until you factor in wind chill on the boat ride out. Mornings before 9 AM tend to produce the best sightings, partly because the light is low and flat on the water, making spouts easier to spot, and partly because afternoon winds chop the surface. The crossing from the mainland to Ile Sainte-Marie by boat takes about three hours and can be rough even in the dry season, so if you are prone to seasickness, fly in from Antananarivo.

Andasibe sits about 140 km (87 miles) east of Antananarivo, reachable in three to four hours on the RN2, and in August the eastern rainforest belt stays green and damp even as the rest of the island dries out. The park's star resident, the indri, the largest living lemur, announces itself with a haunting, almost whale-like call that reverberates through the canopy at dawn, audible from over 3 km (1.9 miles) away. August's cooler mornings, around 12°C (54°F) at first light with mist threading through the tree ferns, mean the indri tend to sit in the open on sun-warmed branches longer before retreating into the canopy, giving you extended viewing time. The forest floor is firm underfoot rather than the ankle-sucking mud of the wet season, and the reduced undergrowth makes it easier to spot diademed sifaka launching between trunks. Night walks, which start around 6 PM when the temperature drops fast, reveal mouse lemurs, chameleons the size of your thumbnail, and leaf-tailed geckos flattened against bark like pieces of lichen.

The Grand Tsingy is Madagascar's most dramatic geological formation, a 600 km² (232 sq mile) labyrinth of razor-sharp limestone pinnacles rising 30 m (98 ft) or more from the forest floor, and August is one of the only months it is reliably accessible. The unpaved road from Morondava involves river crossings by ferry and barge that become impassable from November through April, so the dry-season window is narrow and August sits right in its sweet spot. The via ferrata routes through the pinnacles involve harnesses, cables, suspension bridges, and sections where you are threading between knife-edge karst formations with drops on both sides. The rock itself is warm to the touch by mid-morning, heat radiating off the pale limestone, and the contrast between the sun-blasted pinnacle tops and the cool, humid canyon floors where Decken's sifaka leap between the spires is strange and memorable. This is physically demanding. Expect five to seven hours of climbing, scrambling, and walking on uneven surfaces in direct sun for the Grand Circuit. The smaller Petit Tsingy is manageable for most fitness levels and still delivers the vertigo.

Isalo in August is a landscape stripped to its bones: sandstone canyons eroded into towers and arches, dry grassland the color of old straw, and natural swimming pools fed by springs that stay cool even when the surrounding rock radiates midday heat. The 81,540-hectare (201,560-acre) park sits in the south-central highlands, and August's dry conditions mean trails that become waterfalls in the wet season are now walkable sandstone corridors. The Namaza trail drops into a palm-lined canyon where ring-tailed lemurs pick through fallen fruit at the water's edge, apparently indifferent to hikers. The Piscine Naturelle, a turquoise pool cupped in red sandstone, is cold when you slide in, maybe 18°C (64°F), a shock after hiking through 25°C (77°F) sun. Sunsets from the Fenetre de l'Isalo, a natural rock window on the park's western edge, turn the sandstone formations copper and then deep violet. Arrive by 4:30 PM. You will have the viewpoint mostly to yourself on weekdays, even in August.

Nosy Be, off Madagascar's northwest coast, runs warmer than the highlands even in August, with daytime temperatures around 27°C (81°F) and water temperatures hovering near 25°C (77°F), warm enough for extended snorkeling without a wetsuit. The surrounding marine reserve islands, Nosy Tanikely and Nosy Komba, offer visibility that peaks in the dry season at 20 m (66 ft) or more, and the coral gardens at Tanikely are shallow enough that you are swimming over sea turtles and parrotfish in chest-deep water. Nosy Komba, a short boat ride from Nosy Be's Hell-Ville harbor, is covered in black lemurs that have become so habituated to visitors they will sit on your shoulder if you let them, which is charming until one of them tries to open your backpack. The crossing to Nosy Iranja, a sand-spit island connected by a tidal bar, takes about ninety minutes by speedboat and the bar itself is exposed at low tide, a strip of white sand barely 15 m (49 ft) wide with turquoise water on both sides. August's reliable seas make all of these crossings comfortable.

The Avenue of the Baobabs, a 260 m (853 ft) stretch of dirt road lined with 800-year-old Grandidier's baobabs towering 30 m (98 ft) overhead, is one of those places that looks exactly like its photographs and still manages to exceed them. August's leafless baobabs stand as bare silhouettes against dry-season skies, and the golden-hour light between 5 PM and 6 PM turns their smooth trunks the color of burnished brass. The road is passable by 4x4 from Morondava, about 45 minutes north, and in August the laterite surface is hard-packed and manageable. What most visitors do not realize is that the Baobab Amoureux, two baobabs twisted around each other about 3 km (1.9 miles) off the main avenue, is often more atmospheric and completely deserted. The western landscape between Morondava and the Tsingy is flat, dry savanna dotted with zebu cattle and rice paddies that have gone fallow for winter, and the dust plumes from your vehicle hang in the still air for minutes after you pass. This is Madagascar at its most austere and its most photogenic.