I can do a deeper research for you if you want, however, to be able to answer you now, I can tell you that the vacancy rate can be found by calling the Puerto Rico Tourism Company.

My background (and day job) is in inbound marketing and outbound business development. 

Ideally, I'd like to see rentals from the annual music festivals as well as general tourism in the So-Cal area (goal: 10% or greater ROI). 

If I send the mailers consistently, handle the inbound calls effectively, then deals will happen.  

When you are looking at buying a rental property, really investigate the tourism trends.

However, when it comes to the time and energy required to do an outstanding job of getting the best tenant (marketing, screening, qualification...etc), particularly handling the inbound applications and all the showings, hiring a PM may be worth the expense.One thing to be very wary of: PMs who charge many, seemingly ridiculous fees.

The military realignment to the Pacific, higher defense spending, Qualcomm going after Intel, tourism is hot, retirement community growth, etc.

Wondering ho long this will effect tourism in the area.

The same happened to Dubai a few years ago and it was not pretty, but Calgary will be worse as there is no other attraction there than high paid oil jobs (Dubai has tourism and a bit of financial industry as well). 

I know that they are building a ton out there and they are trying to stimulate economy there and capitalize on tourism based on the below article.