§4.24.1ἐν τούτῳ δὲ οἱ ἐν τῇ Σικελίᾳ Συρακόσιοι καὶ οἱ ξύμμαχοι πρὸς ταῖς ἐν Μεσσήνῃ φρουρούσαις ναυσὶ τὸ ἄλλο ναυτικὸν ὃ παρεσκευάζοντο προσκομίσαντες τὸν πόλεμον §4.24.2ἐποιοῦντο ἐκ τῆς Μεσσήνης (καὶ μάλιστα ἐνῆγον οἱ Λοκροὶ τῶν Ῥηγίνων κατὰ ἔχθραν, καὶ αὐτοὶ δὲ ἐσεβεβλήκεσαν πανδημεὶ ἐς τὴν γῆν αὐτῶν), §4.24.3καὶ ναυμαχίας ἀποπειρᾶσθαι ἐβούλοντο, ὁρῶντες τοῖς Ἀθηναίοις τὰς μὲν παρούσας ὀλίγας ναῦς, ταῖς δὲ πλέοσι καὶ μελλούσαις ἥξειν πυνθανόμενοι τὴν νῆσον πολιορκεῖσθαι.
Meanwhile, the Syracusans in Sicily and their allies, having brought up the rest of the fleet which they had been preparing to join the ships keeping guard at Messene, began to wage war from Messene (being especially urged on by the Locrians out of enmity towards the Rhegians, who had themselves also invaded the territory of the Rhegians with their entire force), and they wished to hazard a sea-fight, seeing that the Athenians had but few ships present, while they learned that the island was being besieged by the majority of the Athenian fleet and by those which were about to arrive.
§4.24.4εἰ γὰρ κρατήσειαν τῷ ναυτικῷ, τὸ Ῥήγιον ἤλπιζον πεζῇ τε καὶ ναυσὶν ἐφορμοῦντες ῥᾳδίως χειρώσεσθαι, καὶ ἤδη σφῶν ἰσχυρὰ τὰ πράγματα γίγνεσθαι· ξύνεγγυς γὰρ κειμένου τοῦ τε Ῥηγίου ἀκρωτηρίου τῆς Ἰταλίας τῆς τε Μεσσήνης τῆς Σικελίας, τοῖς Ἀθηναίοις [τε] οὐκ ἂν εἶναι ἐφορμεῖν καὶ τοῦ πορθμοῦ κρατεῖν.
For they hoped that, if they should conquer with their fleet, they would easily subdue Rhegium by blockading it both by land and sea, and that their own position would immediately become secure; for since the promontory of Rhegium in Italy and Messene in Sicily lay close together, it would not be possible for the Athenians to maintain a blockade and hold the strait.
§4.24.5ἔστι δὲ ὁ πορθμὸς ἡ μεταξὺ Ῥηγίου θάλασσα καὶ Μεσσήνης, ᾗπερ βραχύτατον Σικελία τῆς ἠπείρου ἀπέχει· καὶ ἔστιν ἡ Χάρυβδις κληθεῖσα τοῦτο, ᾗ Ὀδυσσεὺς λέγεται διαπλεῦσαι.
This strait is the sea between Rhegium and Messene, where Sicily is at the shortest distance from the mainland; and this is what is called Charybdis, through which Odysseus is said to have sailed.
διὰ στενότητα δὲ καὶ ἐκ μεγάλων πελαγῶν, τοῦ τε Τυρσηνικοῦ καὶ τοῦ Σικελικοῦ, ἐσπίπτουσα ἡ θάλασσα ἐς αὐτὸ καὶ ῥοώδης οὖσα εἰκότως χαλεπὴ ἐνομίσθη.
And because of its narrowness, and because the sea from two great expanses, the Tyrrhenian and the Sicilian, falls into it and is full of currents, it was naturally considered dangerous.