Depth contours, the reef or beach that uncovers with the tide, and which parts are measured. Open in the Seabed Atlas
This phone or browser can't draw the 3D view. Here is the same seabed as a picture.
Surveyed seabed at surf breaks in Ireland and Portugal
Teaching model, not a forecast. Grey is not surveyed.
How it worksSeabed AtlasRun this break in the Wave LabForecast and tides for this break
Seabed: INFOMAR, Geological Survey Ireland & Marine Institute, CC BY 4.0 (about 4 m survey; standard view 9–18 m, full detail 4–9 m). Land: produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. ESA and the EU do not incur any liability for any use of the Copernicus WorldDEM-30. Surf-zone ground from the SurfCheck Wave Lab tiles: Sentinel-2 waterline heights (contains modified Copernicus Sentinel data 2018–2024; tide levels: Marine Institute, Irish National Tide Gauge Network), INFOMAR 10 m, OPW LiDAR at Bundoran (Geological Survey Ireland & the Office of Public Works, CC BY 4.0) and, where nothing finer exists, EMODnet Digital Bathymetry (CC BY 4.0). Forecast: weather data by Open-Meteo.com (CC BY 4.0). Supertubos and Peniche (Portugal): seabed and beach from the coastal LiDAR survey HR_Lidar_Centro (APA/DGT, 2011), distributed by EMODnet Bathymetry, CC BY 4.0. Depths shifted from chart datum (lowest astronomical tide) to mean sea level using each break's Marine Institute reference station (Galway 3.0 m, Fenit 2.8 m, Dunmore East 2.5 m, Sligo, Killybegs and Ringaskiddy 2.4 m; Peniche about 2.0 m). The sea-level plane is a simple flat level, not a tide prediction. Not for navigation. Rendered by SurfCheck.