I wished I had more to offer you on the lush green Azores Islands, the hidden secret of Portugal. Like trekking through the verdant green landscapes in São Miguel, checking out volcanoes (the islands are still volcanic), or canyoning in Sao Jorge..
BUT the weather on Azores is insanely unpredictable, as they are in the middle of the North Atlantic Ocean surrounded by absolutely nothing, and we ended up spending 3 gloomy rainy days on it, and missing out on all possible outdoor activities.
We chose to stay on São Miguel, which is the largest island of the lot. The flight from Lisbon took about 2.5h and there are 5 - 6 flights daily. What we did managed to do in that cold wetness, was to get warm in the volcanic hot springs though! Head over to Furnas on São Miguel, quite famous for their natural thermal pools for a relaxing soak.
Hot Spring Pool Dona Beija comes recommended by many. It's a far cry from the Japan onsens that we are accustomed to. There are 3 - 4 pools, mostly crowded, and the water was at best warm. Still, go try it if you're there.
Another place to take a dip on Furnas is at Parque Terra Nostra. The magnificent garden has several pools and you can also enjoy the different trees, plants, and flowers in the huge compound.