Today, the population of Ayvalık is close to 30,000, which significantly increases during the summer due to tourism. Ayvalık and its environs are famous for the highly appreciated quality of olive oil production, which provides an important source of income for the local population. Ayvalık and the numerous islets encircling the bay area are popular holiday resorts. The largest and most important of these islets is Cunda Island (Alibey Island) which is connected to Lale Island, and thence to the mainland, by a bridge and causeway built in the late 1960s. This is the oldest bridge in Turkey that connects lands separated by a strait. Both Ayvalık and Cunda Island are famous for their seafood restaurants which are located immediately at the seashore.