pub fn has_oceans() -> bool {
    false
}

pub fn bathymetry(lat: f64, lon: f64) -> f64 {
    if lat.is_finite() && lon.is_finite() {
        0.0
    } else {
        f64::NAN
    }
}

pub fn max_depth() -> f64 {
    0.0
}

pub fn ocean_fraction() -> f64 {
    0.0
}
