I would love to take a wine tasting course.
Wine tasting has been around since the 14th century.  I really love wine so a wine tasting course would be fun.
I love wine too!  I remember doing some wine tasting when I visited Napa, but I would like to learn more about different wines
One of my favorite types of wine is cabernet sauvignon.  Which is one of the most popular and recognized red varietals.
What about Merlot?, could you tell me what is different about it?
Merlot is deemed to be "softer" and "fleshy" than cabernet which is usually smokier and deeper.
What about the whites what is the difference between a Pinot Griggio and a Sauvignon?
I'm not too versed on whites.  I do know that another popular variety of red is pinot noir, and the grapes are grown in cooler locations.
I have also heard about Tempranillo, even when I haven't tried it?  What do you think about it?
Temprano means "early" in spanish so the grapes are picked earlier than most other grapes.