Sao Miguel, also known as “The Green Island”, is the largest of the islands that make up the Azores, Portugal. This beautiful island inhabits about 150,000 people, is approximately 293 square miles and is located in the Atlantic Ocean near the coast of the mainland of Portugal. The scenery offers stunning lakes, sandy beaches, green hills and plains and crystal blue ocean views. The varying elevations of Sao Miguel give it a rolling hills appearance with separating layers of flat farmland. The Island offers the traditional Portuguese cobble stone streets mixed with contemporary architecture and modern shops and cafes. The volcanic origin of Sao Miguel can be easily observed on the island due to cones, craters and natural boiling water springs. Prince Henry the Navigator first inhabited the island in 1431 as a place to put his many flocks of sheep and the following year the first settlers arrived. Tourists often visit the Island between June and October to enjoy the hot weather at the many sandy beaches. São Miguel has a moderate coastal climate, with fog, rain and not very hot summer temperatures. It is very humid and green.
The island of São Miguel is accessible by air through João Paulo II (Nordela) International Airport (PDL/LPPD), which handles domestic/regional traffic to the island, as well as international flights from Europe and North America. SATA International and TAP Air Portugal are the primary Portuguese air carriers serving the island, although several European and North American carriers provide charter services to the island. At the end of March 2015, Ryanair and Easyjet will start operating flights from Lisbon and Porto, due to the deregulation of the market to and from Ponta Delgada.
Renting a car at the airport is one of the best ways to explore and get around the island. Sao Miguel is small enough to drive around in a day, and there is much to see that is only accessed by car.
You can also travel between the larger towns by bus.
In the west there is a caldera and volcano crater that is almost filled by the beautiful Sete Cidades twin seas and the town of Sete Cidades. Steep mountain walls surrounds the lakes, one is azure blue, the other is greyish, and this is explained in a local myth. This is the most famous site of the island and a must see!
Furnas is the place to visit if you want to see the hot springs. This hot spring and most touristy city of the island is situated in the east inland of Sao Miguel in the middle of mountains and forest. A beautiful little village, but the smell is awful!
Caldeira Velha is a beautiful national park like place to visit. A rich tropical vegetation and hot springs which flow into bathing pools are gorgeous and a must see. It is situated between Ribeira Grande and Lagoa do Fogo.
There are some marked hiking trails on the island, for example in and around the Sete Cidades caldera. These are usually one-day trails that any beginner hiker can enjoy. Organised whale- and dolphin-watching from small boats operating out of Ponta Delgada is increasingly popular with tourists.
In 2012 Sào Miguel has received the QualityCoast Gold Award for its efforts to become a sustainable tourism destination. Because of this award Sào Miguel has been selected for inclusion in the global atlas for sustainable tourism DestiNet. 
Unfortunately, it is quite hard to find a good place to eat.. most restaurants serve deep frozen fish and a the poor part of English kitchen. However, usually the trip advisor owl sticker on the door is a very good indicator to find fresh fish and characteristic food.
A half secret tip is the O Pescador Restaurante in Ribeira Grande next to the tin fabric (don't let you irritate by that, you shouldn't miss this place!). Usually it is well visited by locals during lunch hours due to its lunch menu offer. Fresh fish of todays catch is served next to salads, fresh vegetables and good wines for a very fair price! Address: Rua do Biscoito 1, Vila de Rabo de Peixe, 9600-093 Ribeira Grande.
There is very little crime on the island. Most crimes are drug related and are generally localized in Ponta Delgada and Ribeira Grande. Crimes against tourists are very rare.
The other Azores islands can be accessed by boat or plane from São Miguel.