Submarine canyon
A deep valley under the sea, like the Gouf de Capbreton. It focuses the swell on certain beaches, which get bigger waves.
Other terms
Bathymetry · Beach break · Breaking height · Confidence · Cross-shore wind · Crossed swells · Ensemble forecast · Forecast model · Gusts · Iribarren (breaker type) · Offshore wind · Onshore wind · Peak period · Period · Persistence · Point break · Range · Reef · Rip currents · Seabed relief (EMODnet) · Set · Shorebreak · Swell · Swell direction · Tidal range · Tide · Tide coefficient · Wind sea