Sometimes, though, you encounter really alternative transport, such as that documented by these photos.
There is nothing more alternative than walking round Bristol dressed as a tree
Except maybe following the tree dressed as market garden vegetable and singing while waving a stick or a tambourine.
That's what Bristol has to offer over London. London: Transport for London, congestion charging, the tube and the soundtrack of whatever the other tube passengers want to play on their phones.
Bristol: painting yourself green and dancing from pub to pub to music only you hear in your head.