Nosy Komba’s interior is remarkably well preserved and is prime hiking territory. It takes about five sweaty hours to walk up to the summit from Ampangorina and back down. Madame Yvonne is the recommended guide (Ar30,000 including lunch): ask for her at any of the shops. When you are an hour from the top, Yvonne will yell out to the next village so that lunch will be ready when you arrive. She is very knowledgeable about local medicinal plants.