Q. If one saw the sea from the plane at the beginning of the trip and did not make the Bracha of 'Ose Maase Bereishit' at the time, can he say it latter during the same flight?
A. Betzel Hachochmo (5: 27) rules that all brochos recited on seeing or listening something of wonder and unusual admiration, even after some time has elapsed, if they are still being seen or listen to, the corresponding brocho can be recited.
Halichos Shlomo (23: 26) maintains that as long as the wonder feeling still persists in the heart and mind of the observer, he can still recite the blessing. However, Rashbatz (Brochos 59a) quoting Ramban, opines that is is only within 'Toch K'dei Dibur' or about three seconds.