A quick look on Google Earth:  The location (by name) brings one about 69 km / 337°T from Grimsey.  Nothing shows on that image.   Approx: 67.116667° -18.600000° (N Lat, W Long ; decimal degrees).<br>Not sure with a depth of 350 m around there that there is much of a tide at all (?).  Per Wikipedia "open ocean" tides range about 0.6m.  There is some bottom geography there that could cause more tide ... but not much.