The Bosphorus (/ˈbɒsfərəs/) or Bosporus (/ˈbɒspərəs/, Turkish: Boğaziçi, Greek: Βόσπορος, Vosporos, Bulgarian: Босфора, Bosfora), also known as the Istanbul Strait (Turkish: İstanbul Boğazı), is a strait that forms part of the boundary between Europe and Asia. The Bosphorus, the Sea of Marmara, and the Dardanelles strait to the southwest together form the Turkish Straits.

The Dardanelles (/dɑrdəˈnɛlz/; Turkish: Çanakkale Boğazı, Greek: Δαρδανέλλια, Dardanellia), formerly known as Hellespont (/ˈhɛlɨspɒnt/; Greek: Ἑλλήσποντος, Hellespontos, literally "Sea of Helle"), is a narrow strait in northwestern Turkey connecting the Aegean Sea to the Sea of Marmara. It is one of the Turkish Straits, along with its counterpart, the Bosphorus. It is located at approximately 40°13′N 26°26′E.

Monday, August 12:
"At two in the morning we swept through the Straits of Messina, and so bright was the moonlight that Italy on the one hand and Sicily on the other seemed almost as distinctly visible as though we looked at them from the middle of a street we were traversing. The city of Messina, milk-white, and starred and spangled all over with gaslights, was a fairy spectacle. A great party of us were on deck smoking and making a noise, and waiting to see famous Scylla and Charybdis."