2 adjectives to describe tonga

A landau is not at all a suitable or convenient carriage for this sort of work, and had we guessed what was before us we should most certainly have employed the handier tonga.

I commandeered a man from the first hut we came to, and tried by signs to make him understand that he was to carry the lady across the river; but, luckily, just as we reached the bank of what was a very nasty-looking stream in full spate, the liberated tonga overtook us, and Jane was bundled into it, while we three men waded.

2 adjectives to describe  tonga