Seascape
by Open WatersFree, no API key
A map of the seafloor: depth shading, contours and soundings merged from 34 open bathymetry sources, over OpenStreetMap's standard raster tiles. Free with no API key under CC BY 4.0. Not for navigation.
const map = new maplibregl.Map({
container: "map",
style: "https://tiles.openwaters.io/seascape/style.json",
});