search google and this website:

MADAGASCAN Tropical and Subtropical Dry Broadleaf Forest
places

Ankarafantsika National Park 

Isalo National Park

For the page on the Madagascan dry forest & woodlands

Updates
Well it looks like my first trip after the virus now might be as an Expedition leader in Tasmania with Coral Expeditions. If you can't go travelling until everything settles down, then until then, here I am doing online guided walks for Noble Caledonia and online lectures for Silversea.