So that your boat and boat dock looks really cool, we recommend the model water from ZITERDES. You can use the Water Drops, the Water Drops easy or the 2K Water Gel. First, however, you should paint the modules and allow them to dry well. For the highlight we recommend dry brushes. Perfect results can be achieved by accentuating with white color and very dry, ie with very little color. In the harbor area, you can customize the lake or seabed according to your wishes. You can also use the ZITERDES laser cut miniature plants as well as various basing and landscaping products. At the end, when everything is well dried: paint and glue. Is the model water poured.
So that the "water" has a certain depth effect, you must cover the open edge of the module. Use Robust Tankertape to keep the water in the port basin. Another possibility is to form a "watertight" edge into which the model water is poured by means of commercially available plasticine. As soon as the model water is fully cured, you can remove the support panel again.