Kiwitub

The Kiwitub is the New Zealand portable hot tub — and it is not a spa pool. No chemicals, electricity, pumps or plumbing: it heats up fast on gas or firewood, runs on clean fresh water or seawater, and comfortably seats four adults with room for up to six.

Very tough and seriously portable, it's easy to transport — it even floats — so you can use it at home or take it places. A lot of places. You can also make coffee on it.