Blogger 'Twitch Hikes' using Twitter around the world

Paul Smith being interviewed (Flickr)

A British blogger is trying to "Twitch hike" as far around the world as possible in 30 days, relying solely on the generosity of people using social networking site Twitter.

Known as the Twitchhiker, British journalist Paul Smith left his home in Newcastle-upon-Tyne on March 1 and has already travelled via Amsterdam, Paris, Germany and the United States.

Paul Smith, 33, aims to travel to Campbell Island in New Zealand, the opposite side of the planet to his home in northern England, and back again.

For his transport and accommodation he is relying only on other Twitter users.

Why, you may ask.

"To see if it's possible. Because it might be fun. And to raise a eye-bulgingly enormous stack of money for charity: water," he said.

He aims to raise money for a water charity, and has so far had more than $6,400 pledged in online donations.

Smith is also banned from making any travel plans more than three days in advance and has to leave each location within 48 hours of arriving.

Follow Paul here on Twitter.

Watch a clip below of him crossing the Golden Gate Bridge in San Francisco: