I've been filming the big wave season in Nazaré for years, mostly from the water, and I finally started a show with all the footage I've collected.
The first episode is a primer for anyone who's curious or planning to go watch this winter: why the waves get so big (the underwater canyon), how tow-in works, what happens when someone goes down on a 20m wave, and my own first big swell from the water.
It's my channel, so take it as self-promo, but I tried to make it genuinely useful: https://youtu.be/OLOxbgz4tbE?si=0C5HqebOt1GitXbT
If you're planning a trip to see it this season, ask away. Best spots on the cliff, when to arrive, how to know a swell is coming.