I just have to mention how steep the angle is at low tide (spring) in order to get off the Marina and back onto dry land. The picture probably does not reflect how steep the angle is but take it from me it's easier to walk up in preference to walking down. It's pretty close to abseiling (ok, maybe a slight exaggeration but the angle is very near to 45 degs).

I certainly wouldn't want to be walking up or down the ramp on a cold frosty morning!

By the way that's Bruce waving at the bottom of the ramp (to give some perspective)!