In Minecraft a Very Close Game
In Minetest you should Be able to make a huge Ship and then be able to move it in the Water I know it might Be Hard But i know it is Possible Minetest Needs to get as good as Minecraft It needs more better mods
For Example Minetest needs these mods:
Hot Air Balloon
Rocket Ship
Better Car Mods
Build Craft
Better Technic
Hexxit
And Many More......