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Photo: Moonik, CC BY-SA 3.0 via Wikimedia Commons
A village with an impressive citadel overlooking the Bosphorus and its mouth into the Black Sea. By land it's accessible only by a hairpinning road through the forest, with few buses. It's best reached by ferry from Eminönü (twice daily) or Sariyer (frequent). In the village, a road is signposted up to the hilltop Yoros citadel (a little more than 1 km, 20 min on foot, free admission). There's a pleasant area with cafés by the ferry pier; the place gets crowded at weekends during summer. Nasty big dogs stalk the citadel area at night. See Istanbul#The_classic_Bosphorus_cruise.
Anadolukavağı is a neighbourhood in the municipality and district of Beykoz, Istanbul Province, Turkey. Its population is 1,517 (2022). It is at the northern end of the Bosphorus. "Anadolu" is the Turkish name for Anatolia, and "kavak" meant "control post" in Ottoman Turkish, suggesting the strategic importance of its location. It is directly across from Rumeli Kavağı, the Greek or European control post on the other side of the Bosphorus.
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It's as close as the casual visitor to Istanbul gets to the Black Sea. Not much of a vista but it allows you to appreciate the strategic significance of the Bosphorus.
Believed to be the tomb of the biblical Joshua, it's the steepest hill in Istanbul which is closest to the sea.