Take the cable car up to the top of Mount Teide. We were lucky that we had a gorgeous day and could clearly see four of the other Canary Islands. We were also treated to an explanation of were the mineral water from Tenerife comes from, but I wouldn't want to spoil that surprise for you.
A day out at the Aquapark is a must, the dolphin show is far better than the one at Seaworld Orlando and the water rides are thrilling, but not terrifying!
Go to the Pirates Show on Monday night at the Exit Palace, it is an Orlando style dinner show that is every bit as good as anything you would find there.
Quick Tips:
Visit as many restaurants as possible, thay are all good. Beware however, the closer you get to the beach the more you will be hassled by the restaurant touts!
Best Way To Get Around:
Use taxis, they are cheap and quick. Driving can be hazardous as the taxi drivers do tend to be maniacs!