ὅσον ἀπὸ τοῦ ἱεροῦ ἐφεωρᾶτο τῆς νήσου → as much of the island as was in view from the temple
παραστᾰτικῶς: стойко, мужественно (τὸν κίνδυνον ὑπομένειν Diod.).