Hi kands1960, welcome to Cruise-Chat. Congratulations on your upcoming cruise, sounds fantastic.
This might help, you can download maps.
This
might help to show you the sites available. Did you google Tenerife? I had over 34 millions hits through google. Wish I could give you a first hand account, but haven't had the privilege of being there. I'm sure one of our members has, and hopefully they'll see your post. Best wishes for a fantastic cruise, and once again, welcome aboard.