Activities here are mostly arranged through the hotels, with at least one excellent independent operator. In addition to the full range of water activities, most hotels can also arrange excursions to Parc National de Tsimanampetsotse, as well as whale-watching trips (from Ar75,000 per person) to see humpback whales from mid-June or early July to September.
Anakao is one of the best places along the Great Reef to watch humpback whales from mid-June or early July to September. You'll spend around two hours on the water and the whales are regularly seen, sometimes not far beyond the reef. Check the wind conditions – it's not really worth going if seas are choppy.
Most hotels offer whale watching, but the experience (and cost) vary. If you organise your trip through Auberge Peter Pan, it will cost you Ar75,000 to Ar100,000 per person (depending on the number of people) and you'll go out with local fishermen in a small, motorised pirogue. You don't have to be staying here to take its trip. At most other hotels, the cost starts at €50 per person, and most excursions use larger, more modern boats.