à Âile is a municipality and district of Istanbul Province, Turkey. Its area is 800 km<sup>2</sup>, and its population is 43,464 (2022). Bordering à Âile is the province of Kocaeli (districts of Gebze, Körfez, Derince, Kandñra) to the east and south, and Istanbul districts of Pendik to the south, ÃÂekmeköy to the southwest, and Beykoz to the west. The popular resort town AÃÂva is also a part of à Âile. However, between June and September, the population rapidly increases because of the many residents of Istanbul who have summer houses in à Âile.
The word à Âile means marjoram in Turkish. The word's etymology is said to be Greek. There has been a fishing village here since 700 BC and a lighthouse since the Ottoman period. According to the Ottoman General Census of 1881/82-1893, the kaza of à Âile had a total population of 16.770, consisting of 10.314 Muslims, 6.447 Greeks, 3 Armenians and 6 foreign citizens. The boundaries of à Âile were expanded by the addition of the village of Esenceli from Beykoz district in 1989.
There are 62 neighbourhoods in à Âile District:
à Âile is famous for its beaches. However, it is at the northernmost point of Istanbul and thus shares the same sea conditions as other Black Sea towns where strong sea undercurrents can be dangerous to inexperienced swimmers. Beachgoers drown here annually on a regular basis. The north-facing Black Sea has a much shorter holiday season than the Aegean, the Mediterranean or even the Marmara, due to the relatively colder winters. à Âile Castle () is a 14th-century Genoese castle on an island in à Âile. The castle was renovated in 2015, sparking criticism that the work had made it resemble the cartoon character SpongeBob SquarePants or an illustration from the video game Minecraft. The tomb of a Muslim saint, Kum Baba, is on a tree-covered hill above à Âile. Along the coast near à Âile, in the village of Kñzñlcaköy, is a cave which, according to a local myth, is said to be the scene of events in the Anabasis of Xenophon. à Âile is also known for à Âile cloth, a crimped-looking, light, see-through cotton fabric, made on the à Âile coast, sold in many shops in the town and sent to the bazaars of Istanbul. A fair is held in the town to promote à Âile cloth every summer. The largest campus of Ià Âñk University is located in à Âile.
à Âile is a part of Istanbul public transport system (ðETT). There is a bus from Harem via ÃÂsküdar (located at the Anatolian side of Istanbul) to à Âile (ðETT Lines 139 and 139A).
à Âile's climate is humid subtropical according to the Köppen and Trewartha climate classification, though until recently, the town was in the oceanic zone. à Âile's climate is marked by high humidity. It is in plant hardiness zone 8b, and AHS heat zone 2.
à Âile is twinned with: