Vacation Activities

I'm planning my vacation for the year (San Juan, Puerto Rico) and I'm trying to figure out how much I want to schedule in the way of activities. 

I'm not one of those who can just lie on a beach with a drink and sleep all day. I wish I was. It would make planning a lot easier. But I know myself well enough to know I'd be bored stiff by lunch time. So I must have activities. 

Not for me

But what activities? and how many? 

I know I'm going to spend at least a day (probably two) just walking around taking pictures - that's a given. But that falls more into the category of free time, since it's unscheduled and there is no plan beyond "that looks like an interesting street - let's go that way."

In Granada I went on an olive oil tour, which was an interesting break from the city, and the first time I'd ever seen olives on the tree. I also got to drink from a spring that promises eternal youth, so now you know my secret. 

I'm thinking of a cooking class in the local specialties, because it sounds intriguing and a way to meet like-minded people. There's a trip to a rain forest (lunch included). There's an architecture tour, a drinks and shopping tour, a tour to a remote hamlet where they roast whole pigs, and another where they take you kayaking. There's a tour of a local rum distillery, which looks interesting, and a candlelight tour of old Spanish fortifications (spooky). 

I'm going to be gone a week, so I figure three, maybe four tours will provide interest and leave me enough down time to just relax and wander about.

How do you prefer to spend your vacation time?