The Cromwell is from Revell with wading gear from MR Modelbau (It's been a while since I did this one but I believe that the wading gear was part of the Centaur conversion set?) Some of the stowage was from MR Modelbau with additional stowage from the spares box. I used Milliput to represent the areas protected from the sea. Figures are from Milicast and different grades of wire were used to make the earphones, antenna and wading attachment.

The Water:
I poured clear resin water in different layers mixing in enamel blue/brown/green to get a kind of dull water look and stipled a very light grey into certain points to get the froth effect.