• Indris can be observed all year, but avoid the damp, cold winter. They are easy to see around Andasibe village, four hours’ drive from the hectic capital Antananarivo. Hotels here suit every budget, including Vakona Forest Lodge and the Feon’ny Ala, where you’re likely to hear indris calling from nearby trees.
• From Andasibe, walk around Analamazoatra Special Reserve, which has five habituated groups; sightings guaranteed. Or drive to the wilder primary rainforest at Mantadia or Mitsinjo Reserve: each have two habituated (though sometimes harder-to-locate) groups.
• UK tour operators that specialise in Madagascan wildlife include GreenTours (01298 83563, www.greentours.co.uk), Naturetrek (01962 733051, www.naturetrek.co.uk), Origins Safaris (www.originsafaris.com), Rainbow Tours (020 7666 1250, www.rainbowtours.co.uk), Reef & Rainforest (01803 866965, reefandrainforest.co.uk), Tracks Safaris (01386 830264, www.trackssafaris.co.uk) and Wildlife Worldwide (01962 302086,…