It's not really a good idea to tie up to the customs dock and there is a surcharge. This is a very small busy area and a 48' mono will be difficult, especially if there is any wind. As far as anchoring in Cruz Bay, it's pretty shallow but the hold is very good, it's mud. It was harder getting the anchor up and shaking off the mud. In normal weather conditions the dinghy ride is doable, but it might be wet.