Here you can see live (streaming) the North Beach Praia do Norte in Nazaré, Portugal, whether in days of big swells, as in calmer days.
It is the most practical way to see the beach, at a distance of one click, for nostalgia or curiosity.
It will also help you decide which are the best days to go and see the giant waves live (if possible). Check below the webcam livestream from MEOBeachcam service:
Here you can see the surf forecast report of Praia do Norte in Nazaré.
Usually when the swell is above 2 meters in the forecast (actually the Nazaré canyon amplifies this value), the period of the waves is above 13 seconds and the wind is not very strong and offshore, we have good conditions for big waves!
Check the windguru forecast table bellow: