Tim Smit educate people about environmental matters and encourages a greater understanding and empathy with these matters. Smit raised the needed funds and was the driving force, pulling the team of people together to build what has been described as 'the eighth wonder of the world' ; the site design was by Nicholas Grimshaw. The Eden Project is said to have contributed over £1 billion into the Cornish economy. Smit's book about the creation of the Eden Project, 'Eden', was first published in 2001 and updated on the 10th anniversary of the opening in March 2011. It is the best-selling environment book
World Botanical Gardens up Mauna Kea's slope. The Rainforest Walk was the first portion open to public touring on July 4, 1995. On September 2, 2004, a change of management of World Botanical Gardens took place, and in 2008 the Umauma Falls overlook and its surrounding 90 acres was sold to "Umauma Experience." In 2009 the garden officially opened a zip-line tour known as Zip Isle Zip Line Adventure descending into the Hanapueo stream gulch. This was to become one of many adventures that would initiate the collection known as Botanical World Adventures. The adventures include World Botanical Gardens, Zip Isle Zip Line