The surveyed seabed drawn over the live camera, where it actually lies. Open these in Safari.
Step one Run the probe Ten seconds. All five lines must show a tick before the main page can work. Step two Open the site view Allow motion and orientation first, then camera, then location.Wave the phone in a figure of eight for five seconds before you start, away from railings, cars and any magnetic case. Then, on the view itself, tap the round button for the sun or the moon — or the landmark banner — to replace the compass entirely.