If you search a dive club for the Garajau spot, look for "Manta Diving":
www.mantadiving.com
It's between the airport and Funchal, reachable by bus from Funchal.
Madeira benefits from warm streams originating from the Mexico Gulf, this mean you'll see a lot of tropical fishes. Nice viz, ...
About Madeira Wines: I don't understand how peoples are so crazy about them ... I prefer a good vintage Port.
Don't miss orchids gardens: you'll see a lot of phalaenopsis, coelogina, ... in flowers
Best regards
CdM
