Building a raft from Washed up Plastic & Towing a Tractor to my Island

I built a raft using washed-up ocean plastic floats from a marine farm, to transport a tractor 8 km across open water to my remote off-grid forest property in Marlborough Sounds, NZ.
Watch the full process, from raft construction and load testing to towing the tractor and using it to work on my property.