Step 1: Start
First you make the boat triangle shape like this. Make sure you make a cone shape on the top or else you'll mess up.
Step 2: Tiles
Next you break any ground surface on the bottom of it then replace it with Quartz or Polished Andesite.
Step 3: Steering Room
You must now make a steering room so when you put the seats/stairs you leave a place open for a fence gate. Put some slabs that you see.
Step 4: Storage
You now make a storage on both sides. Make a fence gate no door for entrance.
Step 5: Peddle/Finish
Now make a peddle like this on the back then your done!