When day was now breaking (πρωιας ηδη γινομενης). Genitive absolute and note present middle participle (dawn coming on and still dark). In Matthew 27,1 the aorist participle (γενομενης) means that dawn had come. For "beach" (αιγιαλον) see Matthew 13:2.

Was (εστιν). Present indicative retained in indirect assertion.