About the location
Nearly 56% of the overall population of 250.000 inhabitants live on the main island Sao Miguel, followed by 23% on Terceira and around 6% on Faial and Pico. The average temperatures are warm all around the year, with 14 degrees celsius during the winter up to 22 degrees in August. Since the islands belong to Portugal, the currency is Euro.
For photographers all of the islands are beautiful for different reasons, so you need to choose which type of photography you prefer. For anybody who likes combine taking photos with hiking, the main island Sao Miguel and Pico is a good choise. The latter has the highest mountain in Portugal also called Mount Pico, which is also one of the highest volcanos in Europe.
If you have the time, you might also have a look at Corvo, which is only a very small island, but the shape looks just insane for landscape photography.